10th Science II Semi-ENG QueBank MSCERT PDF

महारा शासन दु. ०२०२४४७६९३८ शालेय श ण व डा वभाग Email- रा शै णक संशोधन व श ण प रषद,महारा [email protected] ७०८ सदा शव पेठ, कुमठे कर माग, पुणे ४११०३०....

महारा शासन दु. ०२०२४४७६९३८ शालेय श ण व डा वभाग Email- रा शै णक संशोधन व श ण प रषद,महारा [email protected] ७०८ सदा शव पेठ, कुमठे कर माग, पुणे ४११०३०. Question Bank March 2023 Standard :- Tenth Medium :- English / Semi English Subject :- Science and technology part – 2 सूचना- 1. सदर पेढी ही १००% अ ास मावर तयार कर ात आली आहे. 2. सदर पेढीतील हे अ धक ा सरावासाठी असून संचातील बोडा ा प केत येतीलच असे नाही, याची न द ावी. Instructions - 1. This question bank is based on 100% syllabus. 2. It should be noted that the questions in the said question bank are for more practice and the questions in the question bank may not be there in the board question paper.  Question Bank Science and Technology Part 2 Q 1 A) Choose the correct option. 1) Transfer of information from molecules of DNA to mRNA is called _____ process. A. translocation B. translation C. transcription. D. differentiation 2) Similarities in initial stages indicate the _______ evidence. A. Connecting links B. Anatomical C. Embryological. D. Palaeontological 3) ______ is a vestigial organ in human beings. A. Wisdom teeth B. Ear muscles C. Body hairs D. All the above e 4) Nitrogenous molecules ………….. does not present on mRNA strands. un A) Adenine B) Guanine C) Uracil D) Thymine 5) Various theories about the origin and development of living organisms have been proposed so far, among which the theory of ……………. is the most widely accepted. ,P A) Use and disuse of organs B) Natural selection C) Successive development of organisms D) Inheritance of acquired traits 6) The carbon dating method was developed by ………….. M A) Willard Libby B) Charles Darwin C) Lamarck D) Johann Mendel 7) It was asserted by ………….. that the principle of natural selection was useful in the gradual development of living organisms. RT A) Willard Libby B) Charles Darwin C) Lamarck D) Johann Mendel 8) Protein located in bones is ______. A. myosin B. melanin C. haemoglobin D. ossein E 9) Which of the following vitamins is necessary for synthesis of NADH2 ? A. Vitamin B3 B. Vitamin C C. Vitamin B2 D. Vitamin K SC 10) _______ cells divide by mitosis. A. Somatic. B. Gametes C. Stem. D. Both A and C 11) The first step of karyokinesis is ________. A. anaphase B. telophase C. metaphase. D. prophase. 12) _________ is not a part of mitosis. A. Anaphase B. Diplatin C. Prophase D. Cytokinesis 13) We get _______ energy from lipids. A. 4 cal / gm. B. 9 cal/ gm C. 9 kcal/ gm. D. 4 kcal/gm. 14) In Humans there are ___ pairs of chromosomes. A. 22. B. 23 C. 44 D. 46 2 15) In one molecule of glucose …………… hydrogen atoms are present. A) 6 B) 12 C) 22 D) 11 16) Of the following …………. is called the energy currency. A) ATM B) NAD C) FAD D) ATP 17) The cyclic reaction 'Tricarboxylic Acid Cycle' was discovered by........ A) Parnassus B) Sir Heinz Krebs C) Meyerhoff D) Embden 18) An enzyme Rubisco is the most abundant type of …………… in nature. A) Carbohydrate B) Vitamin C) Protein D) Fat 19) A diploid cell has.......... number of chromosomes. A) 23 B) 46 C) 92 D) 36 e 20) Which of the following is not a type of asexual reproduction in multicellular organisms? un A. fragmentation B. regeneration C. Budding D. binary fission 21) Find the odd one out: A. Stigma B. Anther C. Style D. Ovary A. 1 to 2 million ,P 22) At the time of birth , there are _________oocytes in the ovary of a female foetus. B. 2 to 3 million C. 2 to 4 million D. none of these 23) _________ modern remedial technique is used if there is a problem in implantation of an M embryo in the uterus. A. Surrogacy. B. Sperm bank C. In vitro fertilisation. D. none of these. 24) Implantation of the embryo occurs in ________. RT A. uterus. B. ovary C. oviduct. D. vagina 25) In humans,sperm production occurs in the organ _______. A. testes. B. scrotum C. prostate gland. D. ovaries. E 26) Pregnant mother supplies nourishment to her foetus through _________. A. uterus. B. placenta C. ovary D. oviduct. SC 27) _________ twins are formed from a single embryo. A. Dizygotic B. Monozygotic C. Multiple zygotes. D. Zygote 28) Pollen grains are formed by _________ division in locules of anthers. A. meiosis B. mitosis C. amitosis. D binary. 29) Asexual reproduction occurs by _________ cell division. A. mitotic B. meiotic C. fertilisation. D. double fertilisation. 30) This method of asexual reproduction is seen in paramecium. A. transverse binary fission. B. longitudinal binary fission C. simple binary fission. D. regeneration 3 31) In meiosis, the number of chromosomes becomes _______. A. multiple times. B. triple C. half. D.double 32) Generally, every month, ______ ovum is released in the abdominal cavity alternately from each ovary. A. 1 B. 2 C. 3 D. 4 33) ________ is present in unisexual flowers. A. Both androecium and gynoecium B. Only androecium C. Only gynoecium D. Androecium or gynoecium 34) Flowers without stalk are called........... A) Sessile B) Inflorescence C) Anther D) Male flower e 35) The energy required by the sperms comes from the ……..... un A) Mitochondria B) Fructose sugar C) Nucleus D) Proteins 36) In ‘44+XX’ 44 means number of............... A) sperm cell B) egg cell C) autosomes D) sex-chromosomes ,P 37) An organ called as …………. is formed for supply of food material during the growth of the embryo in the uterus. A) vesicle B) gallbladder C) white corpuscle D) placenta M 38) Painful and burning sensation during urination are the symptoms of ………… sexual disease. A) AIDS B) Gonorrhea C) Syphilis D) Hernia RT 39) _________ is a chemical factor of abiotic components. A. Air. B.water. C.Nutrients D.sunlight 40) __________ is an organic compound of abiotic components. E A. Proteins. B. Iron. C. Sodium. D. Oxygen 41) _______ is a rare species. SC A. Lesser florican B. Tiger C. Giant squirrel. D. Musk deer 42) _________ is an indeterminate species. A. Red panda. B. Lion C. Lion tailed monkey D. Giant squirrel 43) Occurrence of diversity among the organisms of the same species is called _______ diversity. A.species. B.genetic C.ecosystem. D.animal 44) In modern civilization,-------- has become a primary need. A.food. B.cloth C.shelter. D.energy 45) Among the abiotic components of the ecosystem, …… is the inorganic component. A) Oxygen B) Carbohydrate C) Protein D) Fat 4 46) The solid component causing air pollution is....... A) C B) CO C) CO2 D) H2S 47) Of the following places not any radioactive accident has occurred in ………... A) Chernobyl B) Windscale C) Three Mile Island D) Pokhran 48) Environmental issues were discussed in the ……….. Five Year Plan in India. A) first B) second C) third D) fourth 49) No industry, factory or person shall have the right to release pollutants into the atmosphere in excess of the prescribed limits under ………… A) Forest Conservation Act B) Environment Protection Act C) Wildlife Protection Act D) Biomedical Waste Rules e 50) The headquarters of International Union for Conservation of Nature and Natural Resources un (IUCN) is in........... A) Switzerland B) Geneva C) Norway D) America 51) The pink page of the IUCN's Red List shows the names of …...... species. A) Endangered B) Rare ,P C) Vulnerable C) Indeterminate 52) Most electric power plants are based on the principle of _______. A.electro induction. B. magnetic induction. M C. electro- magnetic induction D. electromagnet. 53) Principle of Electromagnetic induction was invented by the scientist ______. A. Ohm. B. Michael Faraday C. Joule. D. Newton RT 54) In the power plant based on nuclear energy ____ is used to rotate the generator. A. Steam turbine. B.air turbine C.water turbine D.none of these. 55) When a neutron is bombarded on an atom of uranium _______ neutrons generated in E this process. A. 1. B. 2. C. 3. D. 4. SC 56) Kinetic energy in flowing water drives _______ to generate electricity. A. watermill. B. windmill C. turbines. D. generator. 57) Wind turbines with capacity are commercially available. A. 1 KW to 7 MW. B. 1 KW to 7 KW C. 1 KW to 7000 W D. 1 W to 7 MW 58) Solar photovoltaic cells convert the solar radiation energy directly into ____ energy. A. electrical B. potential C. kinetic. D. heat. 59) A silicon solar cell of dimension 1 sq.cm. generates current of about ______. A. 50 mA B. 30 mA C. 50 A D. 30 A 60) A silicon solar cell of dimension 1 sq.cm. generates ______ potential difference. A. 0.1 V. B.0.5 V. C. 0.1 mV. D. 0.5 mV. 5 61) In nuclear power plants, neutrons are bombarded on atoms of ______. A. uranium-236. B. barium C. krypton. D. premium-235. 62) My body is soft and slimy,hence I am referred to as ______. A. mollusca B. echinodermata C. annelida D. arthropoda 63) Which of the following is a hermaphrodite animal? A. doliolum B. scorpion C. centipede D. cockroach 64) Which of the following animals can regenerate it's broken body parts ? A. Frog B. Starfish C. Sparrow D. Pigeon 65) Which of the following is a warm blooded (homeothers) animal? A. Bat B. Tortoise C. Wall lizard D. Crocodile e 66) My body is _______ shaped to minimise water resistance. un A. pointed B. spindle C. cartilaginous D. flat 67) _______ animal is called a friend of farmers. A. Rabbit B. Cat C. Leech D. Earthworm A. nereis ,P 68) Which of the following animals has a hard calcareous shell? B. shark C. bivalve. D. herdmania 69) Among the following organisms in phylum........ show cellular organisation. M A) porifera B) cnidaria C) platyhelminthes C) aschelminthes 70) Among the following types the body symmetry …………. is not found in animals. A) asymmetric B) bilaterally symmetric C) Axial symmetric D) Triploblastic symmetric RT 71) An earthworm is …..……. animal. A) an eucoelomate B) a pseudocoelomate C) a dicoelomate D) an acoelomate 72) Walrus belongs to the class......... E A) amphibian B) pisces C) reptile D) mammal 73) _________ acid is used in Production of vitamins. SC A. Citric B. Gluconic C. Lactic D. Itaconic 74) Nowadays, ___ are used for treatment of diarrhoea and treatment of poultry also. A. yoghurt B. probiotics C.vinegar D. cheese 75) Yoghurt is a milk product produced with the help of ---------. A. lactobacilli B. azotobacter C. corynebacterium. D. streptococcus. 76) ------ is a powerful antibiotic against treatment of tuberculosis. A. Penicillin. B. Rifamycin C. Streptomycin. D. Bacitracin. 77) ------– is used in the commercial bakery industry. A. Compressed yeast. B. Algae C. Bacteria D. Microbes 6 78) ----- is a substance obtained by microbial processing that roles as an artificial sweetener. A. Nycin B. Lysine C. Xanthenes D. Xylitol 79) The taste of butter is due to the compound ………….. in it. A) Lactose B) Fat C) Diacetyl D) Acetic acid 80) A cheese that has hardened slightly after keeping for three to twelve months is called...... A) Mozzarella B) Parmesan C) Cottage D) Cheddar 81) A drink made by fermenting apple juice is called ……… A) Cedar B) Brine C) Wine D) Juice 82) The group of bacteria used to break down oil spills is called..... A) HBD B) HCB C) HAB D) HOD e 83) At the earliest stage of development, the organism is in the form of a mass of a cell, which un are almost alike, those cells are called ________. A. Stem cells B. RBC C. WBC D. None of these 84) Which of the following is an important requirement in organ transplantation? ,P A. Blood group of recipient B. Diseases of donor C. Age of donor D. All above. 85) Availability of _____ is an important requirement in organ transplantation. A. doctor B. clinic D. donor D. ambulance. M 86) The disease related with the synthesis of insulin is _______. A. cancer B. arthritis C. heart disease D. diabetes. 87) Transgenic raw potatoes generate immunity against _______ disease. RT A. plague B. cholera C. leprosy D. TB 88) ________ have valuable contributions in the green revolution in the USA. A. Dr. Norman Borlaug. B. Dr. Swaminathan. E C. Dr. Wargis Currian. D. Dr. Hargovind Khurana. 89) Methods like artificial insemination and embryo transplant are mainly used for __. SC A. animal husbandry. B. wild life C. pet animals. D. infertile women. 90) Cell _______ starts from the 14th day of conception. A. growth. B. differentiation C. development D. division 91) _______ is the revolutionary event in biotechnology after cloning. A. Human genome project B. DNA discovery C. Stem cell research D. All the above 92) Biotechnology integrated the toxin which is fatal for ______, was produced in leaves and bolls of cotton. A. bollworm B. caterpillar C. sparrow D. frog 7 93) The Government of India has encouraged _____ for improving productivity by launching the program NKM-16. A. aquaculture. B. poultry C. piggery D. apiculture 94) _____ are present in the umbilical cord by which the foetus is joined to the uterus of the mother. A. stem cells B. muscle cells C. neuron cells D. bone cells 95) For the purpose of preservation stem cell samples are kept in -------. A. liquid oxygen B. hydrogen C. liquid chlorine D. liquid nitrogen 96) Phenylketonuria arises due to genetic changes in ______ cells. A. liver B. intestine C. pancreas D. heart e 97) ________ organisms are used as biofertilizers. un A. Thiobacillus B. Nostoc C. Saccharomyces D. Ischeria 98) Stem cells are not found in.......... A) Umbilical cord B) Blastocyst C) Adipose tissue D) Liver ,P 99) The leaves of the transgenic variety of.......... are given to chew to prevent the cattles from contracting viral disease, rinderpest. A) Potatoes B) Tobacco C) Maize D) Bamboo M 100) Dolly the sheep born through cloning technique has grown in the womb of a …....... sheep. A) Scottish B) German C) Finn Dorset D) Denmarkian RT 101) The idea of using microorganisms to destroy oil spills was first suggested by an American scientist of Indian origin ………... A) Hargovind Khurana B) J. C. Bose C) Rishi Sunak d) Dr. Anand Mohan Chakraborty E 102) Alcohol consumption mainly affects the ______ system. A. nervous B. excretory C. respiratory D. digestive SC 103) Laughter club is a remedy to drive away _______. A. addictions B. stress C. lethargy D. epidemics 104) _______ helps to improve concentration in the studies. A. hobbies B. sports C. meditation. D. eatables 105) _______influence is stronger in case of adolescents. A. Teachers. B. Fathers C. Relatives. D. Peer group 106) Our _______ has been changed to some extent in the age of technology. A. lifestyle B. habit C. circumstance D. passion 107) Hobbies like _______ pet animals help to create a positive mindset. A. feeding B. transfering C. rearing D. looking 8 108) Continuous consumption of ______ substances causes carcinogenic effects, especially on the mouth and lung. A. hot B. sweet C. spicy D. tobacco like 109) Alcoholic person lacks the _____ thinking. A. straight B. rational C universal D. spiritual 110) _____ may arise due to excessive use of mobile phones. A. Headache B. Problem in vision C. Joint pains D. All above 111) Liquor is produced from ______. A. alcohol B. glucose C. acid D. salt 112)The IT Act related to Cyber Crime came into force in the year......... e A) 1972 B) 1986 C) 2000 D) 2010 un 113) Salaam Mumbai Foundation runs programs for _______ in a slum area. A. education B. tobacco C. cyber crimes D. domestic violence 114)The headquarters of the National Disaster Response Force is at........ A) Delhi B) Mumbai ,P C) Kolkata D) Chennai Q1 B) I. Find an odd one out. M 1) Transcription, Translation, Translocation, Mutation 2) Adenine, Guanine, Cytosine, Thymine, Uracil 3) Leaf venation, Size of seeds, Leaf petiole, Leaf shape RT 4) Position of eyes, structure of bones of hand, structure of nostrils, structure of ear pinna 5) Human hand, flipper of whale, cat’s foreleg, wings of birds 6) Carrot, Raddish, Potato, Sweet potato E 7) Budding, Regeneration, Binary fission, Fragmentation 8) Amoeba, Paramecium, Sycon, Euglena SC 9) Vas efferens, Prostate gland, Epididymis, Vas deferens 10) Prostate glands, Bartholin glands, Cowper’s gland, Seminal vesicle 11) Stigma, Style, Pollens, Ovary 12) Hibiscus, Papaya, Sun-flower, Rose, Mango 13) Dengue, Syphilis, Gonorrhea, AIDS 14) Conservation, Pollution, Prevention, Control 15) Grass, Nose, Tiger, Fungus 16) IUCN, WWF, IPCC, BNHS 17) Hydroelectric energy, Solar energy, Atomic energy, Wind Energy 18) Silicon, Uranium, Petrol, Coal 9 19) Solar Photovoltaic cell, Electricity generation using wind energy, Hydroelectric power plant, Solar thermal power plant 20) Water, Wind, Natural gas, Fossil fuel 21) Edible oil, LPG, CNG, Crude oil 22) Coal, Natural gas, Plutonium, Crude oil 23) Solar Bulb, Solar Cell, Solar Panel, String, Array 24) Tortoise, Crow, Lizard, Snake 25) Peacock, Parrot, Kangaroo, Duck 26) Human, Dolphin, Bat, Lizard 27) Cockroach, Butterfly, spider, honey bee e 28) Star fish, Sea-urchin, Neris, Sea-cucumber un 29) Tube -feet, Setae, Parapodia, Sucker 30) Penicillin, Neomycin, Isomerase, Rifamycin 31) Hydrolases, Lyases, Pepsin, Ligases ,P 32) Bacteria, Viruses, Fungi, Plants 33) Khoa, Yoghurt, Butter, Cheese 34) Cheese, Wine, Butter, Kefir, Yogurt M 35) Lactobacillus, Acidophilus , Lactobacillus casei, Clostridium 36) Frog, Earthworm, Pink bollworm, Insectivorous birds 37) Theophrastus, Pliny, John Ray, Linnaeus, Dobzhansky RT 38) DDT, Urea, Malathion, Choloropyriphos 39) Diabetes, Anaemia, Leukaemia, Thalassemia 40) Drying, Salting, Soaking with sugar, Cooking E 41) D.D.T. Malathion, Chloropyriphos, Humus 42) Green revolution, Industrial revolution, Blue revolution, White revolution SC 43) Sodium, Aluminium, Phosphorus, Potassium 44) Cheese, Curd, Ice-cream, Buttermilk 45) Pteris vitata, Rice, Indian Mustard, Sun-flower 46) Actinomycetes, Streptomyces, Geobacter nocardia, Actinoplanes 47) Transport facilities, Social security, Counselling, Toilets 48) Tobacco, Laughter club, Alcohol consumption, Drugs Q.1 B) II. Name the following. 1) I am a connecting link between reptiles and mammals.Who am I ? 2) Who is the pioneer of modern genetics ? 10 3) Which process is shown in the following diagram ? 4) In which book Darwin had published this theory of Natural selection ? 5) Which process is shown in the diagram given below? e un 6) ,P Name the parts shown in the diagram. M RT 7) Hormones related to male reproductive system. 8) Modern technologies in reproduction. 9) Hormones secreted by the ovary of the female reproductive system. E 10) The Electric Power Stations based on Thermal Energy. SC 11) Nuclear power plants in India 12) Major hydroelectric power plants in India 13) Forms of energy. 14) A machine/An engine required to rotate the generator. 15) Name any two natural gases. 16) Type of power generation station at Chandrapur 17) An enzyme obtained from fungi to produce vegetarian cheese. 18) Biodegradable plastic used for storing the garbage. 19) A clean (smokeless) fuel. 20) Vinegar means 4% ________ 21) Microbes used along with artificial nitrogenase in organic farming. 11  22) Study of structure, types and organelles of cells. 23) Donation of organs such as eyes, heart after death. 24) Use of non genetic biotechnological techniques. 25) Genetically modified crops. 26) Bacterias that can be used as manure. 27) The number of different types of cells in the human body that are formed from embryonic cells. 28) Organs that can be used for organ transplantation. 29) Cells that are present in the initial development stage of zygote, that is formed by the union of male and female gametes. e 30) Medicinal plant used in making medicine for coughs. un 31) Diseases endangering social health. 32) Factors disturbing /affecting the social health 33) Name the type of disaster. Disaster,P Tsunami, volcanic eruption, earthquake Type ______ cyclone, snow storms, droughts, floods ______ M Forest fire, weed, fungal disease spreading ______ Communicable virus, bacteria, bite of poisonous animal ______ Poisonous gases, atomic test, unplanned action, accident ______ RT Question 1 B) III. Relate the following. 1) Appendix : vestigial organ : : Peripatus : —--------- E 2) Theory of evolution : Darwin :: ---------------- : Lamarck 3) Changes in the nucleotide of gene : Mutation : : Changes in the place of ribosome : SC ------------- 4) Amoeba : fission :: Hydra : ------------ 5) Calyx : Sepals :: Corolla : ------------ 6) Bisexual : Hibiscus :: Unisexual : ------------ 7) Follicle stimulating hormone : Development of oocyte :: Luteinizing hormone : ----------- 8) Accessory whorls : Calyx and corolla :: essential whorls: -------------- 9) Earthquake : Natural factor : : Industrialization :: ____________ 10) Hydroelectric power station : Water stored in dams :: Atomic power station :______ 11) Stove : Thermal energy :: Sewing machine : _____ 12  12) Power available from solar cells : DC :: power require to run domestic equipments : ______ 13) Thermal power generation : Air pollution :: Atomic power generation : ______ 14) Tapeworm: Phylum Platyhelminthes :: Intestinal worms ______ 15) Mammals : Breathing through lungs :: Pisces : ______ 16) Flatworms : Bisexual :: Roundworms _______ 17) Porifera : Asymmetrical :: Cnidaria ______ 18) Arthropoda : Largest phylum :: Mollusca: ______ 19) Lactobacillus :Yoghurt : : Baker’s yeast: _____ 20) Saccharomyces cerevisiae : Ethanol : : Aspergillus oryzae : _____ e 21) Lactic acid: To impart acidity : : Beta carotene: _____ un 22) Gaseous fuel : Coal gas : : _____: Coal 23) White revolution :Increase in Milk production : : Blue revolution : ______ 24) White revolution : Milk production : : Blue revolution : ______ ,P 25) Apiculture : Honey bees : : Cultivation of medicinal plants : ______ 26) Substances leading to addiction : Drugs : : Substances leading to cancer : ____ 27) Control on tobacco consumption : TATA trust : : Empowering children in slum area : M ______ Q 1 B) IV.Write the function of RT 1. Generator 2. Turbine 3. Condenser Q 1 B) V. Write whether true or false. 1. The decaying process of C-14 occurs continuously in dead organisms only. E 2. Prokaryotic cells divide through mitosis or meiosis. 3. Pollen tube reaches the embryo sac via style. SC 4. Sometimes twins are genetically different. 5. Pollen grains from another are transferred on the stigma. 6. Environment is a broad concept. 7. The power produced from solar cells is a DC. 8. Electrical energy is generated 9. While producing hydroelectric energy , there is no pollution. 10. In a windmill, the rotating blades drive the turbine and the turbine in turn drives the generator to generate electricity. 11. In nuclear power plants, the chain reaction can not be controlled. 12. The disposal of nuclear waste safely is a big challenge before scientists. 13 13. Efficiency of power generation plants based on energy of natural gas is higher than that of the power generation plant based on coal. 14. In a hydroelectric power plant, the potential energy in water stored in a dam is converted into kinetic energy. 15. In nuclear power plants turbines working on solar panels are used. 16. The potential difference available from a solar cell depends on its area. 17. Tentacles are used for capturing the prey. 18. Petromyzon is an endoparasite. 19. Locomotion of starfish takes place through pseudopodia. 20. Classification of animals makes it easy to study the vast variety of animals. e 21. Shelf life of yoghurt can be increased by pasteurisation. un 22. Vinegar is used to bring sweetness in food products. 23. Methane gas is produced by microbial oxidation of industrial waste. 24. Spinosad is a biopesticide. 25. ,P Sulphuric acid is a source of energy for some species of bacteria like Acidophilum. 26. Microbes have the natural ability of decomposing man-made chemicals. 27. Antibiotics cannot be obtained from a variety of bacteria and fungi. M 28. Non-genetic technology involves mutations in cell genes. 29. Earlier insulin was being collected from the pancreas of horses. 30. Various essential elements like N, P, K are made available to crop by earthworms and RT fungi. 31. We don't have any tradition of curing disease with the help of natural resources. 32. Malaria is caused due to genetic disorder taking place in liver cells. E 33. Pseudomonas bacteria can separate the hydrocarbon and oil pollutants from soil and water. SC 34. A gene isolated from the bacterium Bacillus thuringiensis and is integrated with the genome of cotton. 35. High class varieties of crops have been developed through the techniques of organ transplantation. 36. Genetically modified crops have low resistance for disease. 37. Vaccines produced with the help of biotechnology do not remain active for a longer duration. 38. Children who watch cartoon films may imitate the characters of those films. 39. Tobacco chewing does not cause a carcinogenic effect on the mouth and lungs. 40. Stress increases due to more laughing. 14 Q 1 B) VI. Match the following. 1) Column ‘A’ Column ‘B’ 1 Morphological evidences A Tail-bone or wisdom teeth 2 Paleontological evidences B Leaf venation C Fossils 2) Column ‘A’ Column ‘B’ 1 A - vitamin A Beriberi e 2 D - vitamin B Anaemia 3 K - vitamin C Rickets un 4 B1 - vitamin D Night Blindness 3) Column ‘A’ Column ‘B’ 1 2 ,P Polluting energy Environment friendly energy A B smoke particles thermal energy C wind energy M 4) Column ‘A’ Column ‘B’ RT 1 Sunlight A Atomic radiation 2 Natural gas B Environment friendly energy C Fossil fuel E 5) Thermal Power Plant State Capacity SC 1 Vindyanagar Maharashtra 4760 2 Mundra Chhattisgarh 4620 3 Tamnar Gujarat 3400 4 Chandrapur Madhya Pradesh 3340 6) Atomic Power Plant State 1 Kudankulam Maharashtra 2 Tarapur Tamil Nadu 3 Rawatbhata Karnatak 4 Kaiga Rajasthan 15 7) Hydroelectric Power Plant State 1) Tehari Andhra Pradesh 2) Koyana Himachal Pradesh 3) Srisailam Uttarakhand 4) Nathpa Zakri Maharashtra 8) Column ‘A’ Column ‘B’ 1) Aspartame a) anaerobic respiration e 2) Fermentation b) microbial restrictor un 3) Niacin c) Vanillin 4) Escence d) Sweetener 9) 1) ,P Column ‘A’ Baker’s yeast a) Column ‘B’ Probiotics 2) Sauerkraut b) Bread M 3) Liasages c) Antibiotics 4) Penicillin d) Microbial enzyme RT 10) Column ‘A’ Column ‘B’ 1) Caffea arabica a) Saccharomyces cerevisiae E 2) Theobroma cacao b) Lactobacillus brevis 3) Grapes c) Candida SC 11) Protein Product Utility 1) Insulin a) Viral infection 2) Somatostatin b) Cancer 3) Erythropoietin c) Haemophilia 4) Factor VIII d) Anaemia 5) Interleukin e) Dwarfism 6) Interferon f) Diabetes 16 12) Living organism Substance that absorbs 1) Pseudomonas a) Radiations 2) Pteris vittata b) Hydrocarbons 3) c) Arsenic 13) Living organism Substance that absorbs 1) Indian mustard a) Radiations 2) Deinococcus radiodurans b) Arsenic e 3) c) Selenium 14) un Important Departments Telephone Number 1) Police a) 1512 2) Fire Brigade b) 1910 3) 4) Ambulance ,P Disaster control room c) d) 1098 1091 5) Women helpline e) 102 M 6) Child helpline f) 108 7) Blood bank g) 101 RT 8) Railway help room h) 100 Q.1-B) VII. Define. 1) Translation 7) Regeneration 13) Stem cell E 2) Translocation 8) inflorescence 14) Cloning SC 3) Mutation 9) Electromagnetic 15) DNA fingerprint 4) Fragmentation induction 16) Genetic treatment 5) Vegetative 10) Nuclear fission 17) Divercity propagation 11) Vaccine 18) Social health 6) Fertilisation 12) Biotechnology 19) First aid Question 1 B) VIII. Answer in one sentence. 1) What is gamete formation ? 2) Write the types of twins. 3) Write any two- Sexually transmitted diseases. 17 4) What determines whether the two organisms of a species will be exactly similar or not?. 5) How are the sperms formed ? 6) How is the semen produced ? 7) Which are the components of pollination ? 8) Which parts are converted into Seed and fruit respectively after fertilisation ? 9) What does germination mean ? 10) Write the name of the type of reproduction in the following figure. e un 11) How can plants and animals save themselves from extinction? ,P 12) Name the three types of asexual reproduction in unicellular organisms. 13) Write the functions of-. I) ovary ii) sepals iii) penis iv) Seminal vesicle M 14) What does ecosystem mean? 15) What is indicated by this symbol ? RT 16) Write any two man made man made factors affecting the environment. E 17) The animal in the figure, belongs to which endangered species? SC 18) Write the advantages of the Hydroelectric Power project. 19) Write the problems associated with hydroelectric power projects. 20) Write the merits of atomic energy. 21) Write the demerits of an atomic energy plant. 22) Draw the flowchart showing generation of electrical energy. 23) Which substance is used as fuel in nuclear power plants? 18 24) Energy from fossil fuels and nuclear plants are not eco friendly sources, why ? 25) Solar promoters are important, why ? 26) In fuels coal and natural gas which one is eco friendly ? why? 27) State the importance of inverters. 28) Why are control pods used in nuclear reactors ? 29) What is green energy ? Which energy source can be called a green energy source? 30) Explain: Fossil energy is not an example of green energy. 31) Which animal has three pairs of legs ? 32) In how many parts is the body of Hemichordates divided ? e 33) Write any one cold blooded animal you know. un 34) Spongila bears numerous pores on their body.What are those pores called? 35) What are the animals having vertebral columns in their body called as ? 36) The body of the animal in which phylum is radially symmetrical and diploblastic? 37) Write the name of the animal having pseudocoelom. ,P 38) Which animal doesn’t have a neck ? 39) What is the length of a hookworm? 40) How does the animal in the figure protect itself ? M RT 41) What are the locomotory organs of the animal given in the picture ? E SC 42) Which fungus is used to make soya sauce by fermentation? 43) Why does the process of dirt removal occur in detergents even at low temperature ? 44) What is added to impart thickness to instant soup ? 45) Which chemical substances get mixed with the soil by adding chemical pesticides and insecticides in the agricultural industry? 46) Which microbes convert uranium to its insoluble salts ? 19  47) Write the names of two chronic diseases. 48) Complete the following table. Type of disaster Effects A................... Injuries, emotional and mental stress, Outbreaks of epidemics, deaths of victims. B. Environmental.................. 49) Correct the given statement and rewrite it. An effect of disaster on economic leadership is that if local leadership is not strong enough, citizens get confused. e Q. 2 A) Give scientific reasons. un 1) Some of the characters of parents are seen in their offspring. 2) Peripatus is said to be the connecting link between annelida and arthropoda. 3) Vertebrates have slowly originated from invertebrates. 4) Duckbill platypus shows relationship with mammals. 5) 6) ,P We feel tired after exercising. Oxygen is necessary for complete oxidation of glucose. 7) Fibres are one of the important nutrients. M 8) Cell division is one of the very important properties of cells and living organisms. 9) Some higher plants, animals and aerobic microorganisms also sometimes perform RT anaerobic respiration. 10) Kreb’s cycle is also called a citric acid cycle. 11) Flower is a structural unit of sexual reproduction in plants. E 12) Older women are more likely to give birth to children with some abnormalities. 13) Fertilisation in plants is called double fertilisation. SC 14) There is a menopause when women are 45 – 50 years old. 15) The new individual produced by sexual reproduction always has the recombined genes of both the parents. 16) Pollution is a very broad concept. 17) The role of human beings in environmental balance is important. 18) The various food chains in the ecosystem maintain the environmental balance. 19) Without the existence of nature, human existence is almost impossible. 20) The schematic of a turbine also varies according to the type of power generation. 21) It is essential to control the process of nuclear fission in a nuclear power plant. 22) It is possible to produce energy from mW to MW using solar photovoltaic cells. 20  23) Hydropower, solar energy and wind energy are called renewable energy. 24) Energy saving is a need of the hour. 25) Earthworm is said to be a farmer’s friend. 26) Body temperature of reptiles is not stable. 27) Our body irritates if it comes in contact with a jellyfish. 28) Though tortoises live on land as well as in water, it cannot be included in class- Amphibia. 29) Probiotics have got more importance in recent times. 30) Bread and other products made using commercial yeast are nutritious. e 31) Microbial enzymes are eco-friendly. un 32) A biofuel is an important tool in renewable energy sources. 33) The landfill pit is lined with plastic sheets. 34) Microorganisms are used to control the effects of sea oil spills. 35) Weed control plants are beneficial for agriculture. ,P 36) Recently made vaccines are safe. 37) Concepts of body donation and organ donation have come forward. 38) Stem cells are extremely important in regenerative therapies. M 39) Sewage should not be discharged into the river without treatment. 40) Genetically modified crops are beneficial to farmers. RT 41) Some of the organs in the human body are precious. 42) Nowadays school children have to deal with mental stress. 43) The importance of outdoor sports is incomparable. E 44) Alcoholism is always bad. Q.2.B) Solve the following subquestions SC 1) Write a short note : Embryological evidences 2) Complete the flowchart. 21 3) Write advantages of Hereditary. 4) Enlist the evidences of evolution. 5) What is inheritance of acquired characters? 6) What is species & speciation? 7) Which genetic disorders are caused by mutation? 8) Define the evidence of evolution shown in the figure. e un 9) What are the main energy sources of living organisms? ,P 10) What is cellular respiration? State names of its two methods. 11) Which molecules are formed during the glycolysis process? 12) Which molecules are formed after whole oxidation of Acetyl co-enzyme A? 13) Which amino acids are obtained after digestion of proteins? M 14) Explain the use of fatty acids. 15) What are vitamins? State it’s two groups & six types. RT 16) Explain the advantages of cell division to your friend. 17) Explain the following figure. E SC 18) State the characteristics of step of cell division shown in figure. 19) Identify the type of reproduction from the following explanation & draw a neat & labelled diagram. 22  A) The body of the parent organism breaks up into many fragments & each fragment starts to live as an independent new organism. B) Give two examples of living organisms which follow this type of reproduction method. 20) Distinguish between self-pollination & cross-pollination. 21) Distinguish between Sexual & asexual reproduction. 22) Explain the process of fertilisation. 23) State names of organs in male reproductive system. 24) State names of organs in the female reproductive system. 25) Explain asexual reproduction in plants. e 26) What would be the effect if meiosis did not occur in nature? un 27) What is reproduction? Explain the importance of the reproduction process. 28) Explain two main process in sexual reproduction 29) What are the meanings of symbols A, B, C shown in the figure with respect to the environment? ,P M RT A B C 30) What is environmental pollution? Which are types of pollution? 31) Which are two components affecting the environment? State two examples of each. E 32) Complete following concept chart. SC 33) Complete food chain. Grass ----->..............------> Frog ------->..............------> Eagle 34) What is the moral of the story of Jadav Molai Payeng? 23 35) What are vulnerable species? Give two examples. 36) Label the figure. 37) Complete the following chart. e Type Example un A) Pieces B) Amphibians C) Mammalians D) Reptilians ,P 38) Distinguish between Class Aves & Class Mammalians 39) Distinguish between Class Pisces & Class Amphibians 40) Distinguish between Butterfly & Bat M 41) Complete the following activity. a) Who am I, if I respire with gills? RT b) Identify me, if I am warm blooded? c) Who am I, if I have mammary glands? 42) Answer the following. a) Name the phylum in which earthworm & starfish belong to. E b) How does locomotion occur in earthworm & starfish? SC c) To which phylum I belong to, if I have a sting to prick? 43) We are Crocodiles & Alligators. a) To which phylum we belong to? b) In which three sections our body is divided? c) We can’t breathe in water, why? 44) Answer the following. a) In which phylum, the animals have setae or parapodia for locomotion? b) Which phylum has the characteristic phenomenon ‘jointed appendages’? c) In which class, animals have soft legs? 45) Answer the following 24  a) According to the course of animal evolution, which phylum is at the lowest level? b) Through which hole the animals in this phylum give out water from their body? c) Through which hole the animals in this phylum take water in their body? 46) Answer the following a) To which phylum we belong to, if we are marine aquatic animals? b) What is the use of cnidoblast for us? c) How do we destroy the harmful insects? 47) Give advantages of the classification of animals. 48) Draw a neat & labelled diagram. e a) Hydra b) Liver Fluke c) Herdmania d) Jellyfish un 49) Observe the given figure & answer the following. ,P M a) Name the phylum. RT b) Give the characteristics of this animal. 50) Observe the following figure & answer the following. E SC a) Due to which common characteristic the animals shown in the figure belong to the same phylum? b) The exoskeleton of these animals is made up of which chemical? c) Give another two examples of this phylum. 51) Answer the questions based on the given paragraph. Lady Bug Beetle Lady bug beetles are friends of farmers as they destroy harmful insects. It is a predatory insect, which lives on biting worms, white fly worms, white moths, flower insects and 25  bread worms. It acts as a natural insecticide for crops like maize, jawar, cotton, sugarcane, cereals, vegetables, fruit trees, etc. These are attractive red or yellow or grey coloured insects. Many species of this insect are found in our farms. The lifecycle of this insect follows eggs, larvae, cocoon & moth stages. The eggs are found in flutter. The larvae are grey in colour. Larvae & adults both live on sucking insects. a) How does the lady bug beetle live? b) Of which colour the lady bug beetles are? c) State the stages of its lifecycle. d) How does it help the farmers? e 52) What are stem cells? State its two types. un 53) Why some of the organs in the human body are most valuable? 54) What is Biotechnology? Give two examples of biotechnology. 55) What is the importance of stem cells in medical science? 56) Explain vaccination. ,P 57) Concept the following concept chart. M RT 58) Answer the following. a) State the importance of good communication with others. E b) What will you do if your friend has developed the hobby of snapping selfies? SC c) What will you do if the child of your neighbour is addicted to tobacco chewing? 59) State three aspects of disaster which are important in view of common citizens. 60) Write the effects of political disaster. 61) Define disaster. 62) Write a short note on Phase of emergency. 63) What are the seven main aspects of a disaster management cycle? 64) Give two examples of Mock Drill. 65) Write four objectives of Mock Drill. 66) How would we rescue the citizens whose clothes had caught fire? 67) Enlist the necessary materials in the First-Aid kit. 26 68) Give an example of disaster due to unawareness. 69) Give two examples of Post-disaster management. 70) Give one example each of a huge disaster & small disaster. 71) Give one example each of long duration disaster & short duration disaster. 72) In account of disaster, which important facts are to be considered? 73) What is the transitional phase of disaster? 74) Which disastrous effects occur during earthquakes? 75) What is a catastrophic disaster? Give an example. 76) Mention the long term effects of disaster on society. e 77) Which are very dangerous environmental events? un 78) Which are natural disasters? 79) Explain the symbols. ,P 80) In 2020, the whole world is facing a disaster. M a) Which type of disaster is it? b) Write the name of the virus causing this disaster. c) Which four rules did you follow to survive from this disaster? RT d) Write any four effects of this disaster you observed. 81) Observe the given photographs & answer the questions. E SC a) Name the disaster shown in pictures. b) Write any two effects of this disaster. 82) Observe the given pictures & answer the questions. A B 27  a) Identify the disasters shown in both pictures. b) Write their effects. c) Which primary precautions will you take in both situations? Q. 2 B)II. Write short notes. 1) Big bang theory 15) Green energy 31) White Revolution 2) Energy currency 16) Connection of solar cells 32) Blue Revolution 3) Co-enzymes 17) Collar cells 33) Pearl culture 4) Homologous 18) Octopus 34) Biotechnology e chromosomes 19) Star Fish 35) Addiction un 5) Fragmentation 20) Mammals 36) Various ways for stress 6) Pollination 21) Probiotics management 7) Population explosion 22) Yoghurt 37) Budding in Hydra 8) Radioactive pollution 23) Types of cheese 38) In-vitro fertilisation 9) Sacred Grooves 10) Chipko Movement ,P 24) Microbial Enzymes 25) Bio-fuels (IVF) 39) Reasons of infertility 11) Lake Tapping 26) Land filling sites 40) Cyber crimes M 12) Radio carbon 27) Microbial Inoculants 41) National Disaster 13) Nuclear Power Plant 28) Bio-insecticides Response Force RT 14) Problems due to nuclear 29) Organ & Body Donation power plant 30) Green Revolution E 2 B) III. Distinguish between following. 1) Translation & Transcription SC 2) Binary fission & Multiple fission 3) Meiosis & Mitosis 4) Self pollination and cross pollination 5) Aerobic & anaerobic respiration 6) Biotic and abiotic factors of an ecosystem 7) Natural and man-made factors affecting the environment 8) Air pollution and water pollution 9) Conventional energy sources & Non-conventional energy sources 10) Thermal Power Plant & Solar thermal power plant 11) Electricity generation from solar cells & solar thermal power generation 28  12) Series and parallel connection of solar cells 13) Diploblastic and triploblastic germ layers 14) Local cow and Jersey cow Q.3 Answer the following questions. 1) What is heredity ? explain the mechanism of hereditary changes. 2) What is carbon dating? Where is it used? 3) What are objections raised against Darwin's theory? 4) Observe the given images and answer the following questions. e un ,P a) Which evolutionary evidence does it indicate? M b) What does it prove? c) State another example of evolutionary evidence. RT 5) Define vestigial organs. Write names of some vestigial organs in the human body and write the names of those animals in whom the same organs are functioning. 6) Define fossils. Explain the importance of fossils as a proof of evolution with an example. E 7) Explain Lamarck’s Principle. 8) Which evidence of evolution is shown in the given picture? Explain the importance of SC this evidence. 9) Explain in brief Darwin’s theory of natural selection. 10) Complete the following paragraph with the words given in brackets. ( Cro-Magnon, brain, fire, agriculture, Cultural , homo-sapien, wise man ) 29  Evolution of upright man continued in the direction of developing its ______ for the period of about 1 lakh years and meanwhile it discovered the ______. Brain of a 50 thousand year old man had been sufficiently evolved to the extent that it could be considered as a member of the class _______. Neanderthal man can be considered as the first example of ______. The ________ man evolved about 50 thousand years ago and afterwards, this evolution had been faster than the earlier. About 10 thousand years ago, a wise-man started to practise the ________. It started to rear the cattle-herds and established the cities. _______ development took place. 11) Observe the following images and answer the questions. e un ,P a) Which evolutionary evidences are indicated in the given picture? b) How are they formed? M c) Which method is used to measure their age or their time? 12) Observe the picture and answer the following questions. RT E SC a) The given picture indicates which principle? b) Explain that principle in your language. c) What is the meaning of acquired characteristics? 13) Identify the given reaction and explain it. 30 14) Explain the Steps of Glycolysis. 15) What are the main steps of Anaerobic respiration? 16) Which substances are formed after the digestion of amino acids and how are they utilised ? 17) Which hormones are formed from the fatty acids? 18) Why is water an essential nutrient? 19) Write the importance of fibres in our diet. 20) Complete the following concept map e un ,P M 21) A married couple does not have children even after the necessary tests, so what are the RT solutions you would suggest? 22) Why is it necessary to maintain reproductive health ? Which precautions should one follow to maintain reproductive health? 23) Observe the given diagram and explain the method of reproduction. E SC 24) A piece of wet bread or bhakri kept in a humid place for 2-3 days, then a) What will you observe ? b) State the scientific name of the living organism and write its characteristics. 31 25) Observe the given picture and answer the questions given below. e a) State the type of reproduction. un b) Identify the part of reproduction. Sweet potato -.......................... Bryophyllum -.......................... ,P Potato -.......................... 26) Observe the diagram and answer the following questions. M RT E SC a) Label the indicated parts 1, 2 and 3 in the diagram. b) Where does the fertilisation of ovum occur ? c) Where does the embryo get implanted after fertilisation? 27) a) Which type of reproduction is indicated in the following diagram? b) Redraw the given type of reproduction in the correct sequence and explain it. 32 28) Complete the paragraph using the given words. (Luteinizing hormone, endometrium of uterus, follicle stimulating hormone, oestrogen, progesterone, corpus luteum) Growth of follicles present in the ovary occurs under the effect of ----- This follicle secretes oestrogen. -- --- - -- -- -- grows / regenerates under the effect of oestrogen. Under the effect of --- ---, fully grown up follicle bursts, ovulation occurs and -- --- -- -- is formed from the remaining part of the follicle. It secrets --- --- -- -- and --- --- -- -- --. Under the effect of these hormones, glands of -- -- -- -- are activated and it becomes ready for implantation.What is the menstrual cycle? State the names of four hormones which control the menstrual cycle. e 29) If newborns are produced at the age of menopause, they may be with some un abnormalities. Why? 30) Complete the table. Sex/Gender Reasons for infertility ,P Female M Male RT 31) Explain the given concepts with the help of examples. E a) Genetic Diversity b) Species Diversity c) Ecosystem Diversity 32) Complete the concept map. SC 33 33) What is the meaning of the following symbols ? Write your role accordingly. 34) Complete the concept map. e un ,P M RT 35) Why is it said that pollution control is important ? 36) a) Write the given food chain in appropriate sequence. Grasshopper - Snake - Rice field - Eagle - Frogg E b) In which ecosystem a given food chain is included ? Explain the ecosystem. c) If the frog population declines all of a sudden what will be the effect on paddy fields? SC 37) Complete the table. Endangered Heritage Places Threatened/ endangered Reasons of the Country species of an animal Western ghat Rhino Tiger 34 38) Explain the classification of threatened species of animals with an example. 39) Observe the given diagram and answer the questions given below e un a) Explain the diagram. b) Answer the questions with the help of a diagram. c) What is the name of machine given in the diagram d) Write down the function of this machine in short. ,P e) How does it gets/forms the motion 40) Observe the given diagram and answer the questions. M RT E SC a) Which type of energy is generated? b) This power station depends on which factors ? c) Is it environment friendly ? 41) Complete the table. Advantages of hydroelectric Disadvantage of power plant hydroelectric power plant 35  Limitations of solar energy Limitations of wind energy 42) Complete the following flow charts. e un 43) Draw the flowcharts for the given power stations. ,P a)Thermal energy based electric power plant b)Power generation plant on energy of natural gas 44) Explain the stages in electric generation from the given schematic diagram. M RT E SC 45) Draw the schematic diagram of natural gas power plants and answer the following questions. 46) Where is the power plant based on natural gas in Maharashtra ? 47) Why is there less pollution by natural gas power plants? 48) Give the example of eco-friendly electric power generation plants 49) What is the importance/ function of a solar reflector? 50) Why are absorbing/controlling rods used in atomic reactors? 36 51) Complete the table. Limitations of Solar energy Limitation of wind energy 52) Complete the concept map. e un 53) In industries microbial enzymes are used over chemical enzymes. ,P 54) How is soil pollution controlled by microbes ? 55) Why should we use bio insecticides ? 56) Explain – Importance of microbes in sewage (water) treatment in cities. 57) How are microbes useful in land filling for solid waste management? M 58) Which fuels do we get from microbes ? 59) What is the importance of probiotics to humans ? RT 60) What is the use of antibiotics to humans & other animals ? 61) What are the benefits of microbial transplantation in plants? 62) Explain products mode & their uses from microbes? E 63) Complete the chart. SC 64) Write the correct answer in circles. 37 65) Write practical uses of biotechnology. Sr. No. Field Uses A Crop Biotechnology B Hybrid seeds C GM Crops 66) Observe the following figure and answer the questions. e un ,P M a. Which property of the stem cell is shown in figure? b. Write the name of the cells or organs denoted by X and Y. RT c. What is the benefit of tissue / organ culture from stem cells? 67) Complete the paragraph. (red bone marrow, degenerated, umbilical cord, adipose, division, blastocyst) E Different tissues of the body are formed by ______ of stem cells. Stem cells are present in the ______ by which the foetus is joined to the uterus of the mother. Stem SC cells are also present in the ______ stage of embryonic development. Stem cells are present in ______ and _______ connective tissue of adult human beings. It has become possible to produce different types of tissues and the _______ part of any organ with the help of these stem cells. 68) What is meant by Biotechnology ? What does it include ? 69) Explain the commercial applications of biotechnology with examples. 70) How can we save the lives of many people by organ donations ? 71) What are the uses of Biotechnology ? 72) How is Biotechnology useful for human health ? 73) What is meant by cloning ? Explain its types. 38 74) Write uses of DNA fingerprinting ? 75) How is Biotechnology useful in the development of agriculture ? 76) What precaution should be taken while using insecticides ? 77) Why are medicinal plants being cultivated nowadays? 78) How is Biotechnology used in food processing ? 79) What is meant by stem cells ? Write its types ? 80) Define genetically modified crops. Give two examples. 81) Give examples of bio-fertilizers mentioning their advantages. 82) What is meant by vaccination ? What is the safest method of vaccination ? e 83) Why are vaccines made by biotechnology preferred ? un 84) What is organic farming? Why is there an emphasis on organic farming nowadays? 85) What will happen if we eat transgenic potatoes ? 86) Write the things in day-to-day life made by biotechnology. 87) Fill in the blanks in the following paragraphs. ,P (environment related, decomposition, microbial techniques, organic matter, oxidised, aquatic life) It has become possible to solve ______ various problems with the help of M biotechnology. _________ are already in use for treatment on sewage and solid waste. Sewage is rich in _______. If such sewage is released in natural water bodies like rivers, RT the organic matter in it gets ______ with the help of dissolved oxygen. Due to this, the level of dissolved oxygen in water decreases, adversely affecting the _______. 88) Observe the given figure and answer the following questions. E SC a. What is shown in the figure? b. What can the stem cells make in this figure? c. What can these stem cells transform into? 39 89) Which proteins are made by genetics ? 90) Write the effect of biotechnology on agriculture & allied fields. 91) What is meant by the blue revolution ? Which products are produced by pisciculture? 92) What are the advantages of tissue culture ? 93) What is meant by edible vaccines? 94) Write down the benefits of plants grown through tissue culture. 95) Complete the following chart. Sr. No. Plants Functions 1 Pteris vittata....................... e 2 Pseudomonas....................... 3................. To absorb uranium and arsenic. un 4................. To absorb the radiation from radioactive debris. 5 Indian mustard.................. ,P 96) a) What does the following figure relate to? M RT b) Briefly describe each of these steps. 97) Identify the given figure and label it. E SC 98) What will you do? Why? a) Your sister has become incommunicative. She prefers to remain alone. b) You are spending more time on internet/mobile games, phone, etc. c) You have to use free space around your home for a good purpose. 40  99) a) What mental disorder is shown in the given picture? e b) What social message would you give from this? 100) Complete the following. un (lungs, carcinogenic, nervous system, useful, deadly, addiction, intoxicating) Children in their early age try upon tobacco, cigarette, gutkha, alcoholic drinks, drugs, etc. due to either peer-group pressure or symbol of high standard living or as an imitation of ,P elders. However, it may lead to ______ to such ______ substances. Temporarily ________ drugs of plant origin and some chemicals may permanently damage the human_________, muscle system, heart, etc. Earlier, we have studied the _______ effect of tobacco containing M substances on mouth and ______. RT Question 4. Solve the following questions. 1) Explain any five types of evidence that support the theory of evolution. 2) Explain in short- transcription and mutation. E 3) Write the reasons why the theory of gradual development of living organisms is followed by all. SC 4) Write the answers to the questions by observing the figure below. (a) (b) (c) a) Write the name of the animal ‘A’ in the figure. b) Write the name of the animal ‘B’ in the figure. c) Write the name of the animal ‘C’ in the figure. d) Which evolutionary evidence is illustrated by this figure? e) Write the definition of that evidence for evolution. 41 5) Write the expanded form of the names FAD, FMN, NAD, NADP, ATP. 6) Draw neat and labelled diagrams. a) Double fertilisation in angiosperms b) Human male reproductive organs. c) Spore formation d) Human female reproductive system 7) How is it determined whether it will be a boy or a girl? 8) Write the answers to the following questions by observing the figure below. e un ,P M 9) What does the figure above show? RT 10) Which organs are involved in this process? 11) Which hormones are involved in this process? 12) After how many days do these changes happen again? 13) Explain your opinion about the statement that a woman's body is impure while the above E process is going on. 14) Explain the sexual reproductive process in plants with a diagram. SC 15) Observe the figure below. Write functions of the labelled parts. 42 16) Read the following paragraph and write the answers to the questions based on it. Reproduction is an important process for the survival of an organism. Asexual reproduction occurs in different ways in plants. E.g. Vegetative propagation, fragmentation, budding, spore formation etc. Gametes are formed for sexual reproduction. In the animal kingdom, various methods like budding, binary fission, and parthenogenesis are used. There is no difference between males and females in the animals in which these methods are observed. The method of regeneration also creates new organisms. But regeneration is not the real method of reproduction. Regeneration is the process of healing wounds, creating new organs. This ability has completely disappeared in the developed animals. Modern research is being done on the method of sexual reproduction, e.g. Cloning. So in the future women will be able e to create their own offspring without a father. un a) How do living organisms maintain their own species continuity? b) What are the methods of asexual reproduction in animals? c) Why is it said that regeneration is not the real method of reproduction? d) What are the different methods of reproduction in plants? ,P f) What modern breeding methods are being researched in developed animals? 17) ‘Surrogacy, In Vitro Fertilisation (IVF), Sperm Bank/ Semen Bank etc. modern technology M will be useful to humans.’ Support this statement. 18) Write the answers to the questions by observing the figure. RT a) What does the above figure show? b) Write the names of parts A, B, C, D. c) Write the function of the part 'D'. E d) How is semen formed? SC 19) a) What process does the next figure show? b) Describe in short that process. c) Who can benefit from this process? 20) i) Explain my role in the environment based on the following points. (Write two actions each ) a) Control b) Conservation c) Production d) Preservation e) Awareness 43 ii) What initiatives will you take regarding environmental conservation? Write how. iii) What are the endangered species of animals and plants? How can they be saved? 21) Write the effects of radioactive pollution on humans. 22) Name any 5 NGOs in India working on the environment. 23) Briefly explain the environmental role of microorganisms in pollution control? 24) Write any 5 catchy slogans about environment protection. 25) How can biodiversity be conserved? 26) Prepare a table showing the names of major wind power generation projects in India, their location and power generation capacity. 27) What products do you get from microorganisms through the fermentation process? e Explain with an example. 28) Explain biofuel production with the help of a diagram. un 29) Observe the figure and write the answers to the questions asked. ,P M a) Write the name of the fungus in the figure above. b ) What is the source of these fungi? RT c) Which organic acid obtained from this organism is used in commercial production? 30) Observe the figure and write the answers to the questions asked. E SC a) Name the above figure. b) What is it used for? c) Which gas is formed in it? d)How is this gas formed? e) What is done with sewage ? 44 31) Complete the paragraph by selecting the appropriate option in parentheses. (energy, microbial, erosion-proof, reused, purification, environmentally Friendly) Nowadays, instead of chemical catalysts, …………. enzymes are used in the chemical industry. These enzymes are active at low temperature, pH and pressure; due to which ………….. is saved and …………. instruments are also not necessary. Enzymes carry out specific processes; hence unnecessary byproducts are not formed due to which expenses on …………. are minimised. In case of microbial enzymatic reactions, elimination and decomposition of waste material is avoided and enzymes can be ………….. Hence, such enzymes are ………………... 32) Read the following paragraph and write the answers to the questions asked. e Sulphuric acid is present in the acid rain and materials coming out of mines. You know that erosion of metals present in statues, bridges and buildings occurs due to it. Sulphuric un acid is a source of energy for some species of bacteria like Acidophilum spp. and Acidobacillus ferrooxidans. Hence, these bacteria can control the soil pollution occurring due to acid rain. Water soluble salts of uranium are present in the wastes produced during electroplating and in effluent released in the environment from the atomic energy plant. ,P Geobacter convert these salts of uranium into insoluble salts and thereby prevent those salts from mixing with groundwater sources. a) What causes metal erosion in statues, bridges and buildings? M b) Sulphuric acid is the source of energy for which bacteria? c) What kind of pollution do these bacteria control? d) What are the water soluble salts in nuclear power plants and in the process of RT electrolysis? e) Which bacteria prevent these salts from mixing with ground water by converting them Into insoluble salts? 33) Write the answers to the questions by observing the figure. E SC a) What type of fuel production process is shown in the figure? 45  b) Write two examples each of the solid, liquid and gaseous fuels produced in this fuel production process ? c) How do microorganisms play their role in this process? 34) Write down the names of five medicinal plants and their uses. 35) Read the following paragraph and write the answers to the questions based on them. Vaccination gives either permanent or temporary immunity against a specific pathogen or disease. Traditionally, vaccines were prepared with the help of pathogens. Completely or partially killed pathogens were used as vaccines. However, due to this, there were chances of contracting the disease in case of some persons. Hence, as an alternative, scientists tried to artificially produce vaccines with the help of biotechnology. For this purpose, scientists e produced the antigen in the laboratory with the help of genes isolated from the pathogen and used it as a vaccine. Thus, safer vaccines are being produced. Work on production of edible un vaccines is in progress and presently, potatoes are being produced with the help of biotechnology.These potatoes are called transgenic potatoes. These potatoes will act against. Consumption of these raw potatoes generates immunity against pathogens. For the production of such edible vaccines, antigens are produced by isolating the desired gene from ,P human pathogens and injecting it into plants. a) How can people who have been vaccinated with haemophilia be infected? b) Why are vaccines produced with the help of biotechnology safer than conventional M vaccines? c) How does the immune system respond to vaccination? d) What is the disadvantage of transgenic potatoes? RT e) Why is vaccination more beneficial than antibiotics? 36) Write the correct statement from the statements given in the box below the figure. E SC a) The whole plant is formed from the pieces of leaves which contain the genes of human pathogens. b) Consumption of raw potatoes builds immunity against those germs. c) Isolation of desired genes from pathogens found in human beings. d) Genetically transmitted plant-virus. e) The virus infects pieces of potato leaves. 37) Explain the statement-The revolutionary phenomenon in biotechnology after cloning is stem cell research. 38) How can we solve many environmental problems using modern biotechnology? 46 39) How is biotechnology useful for human health? Explain with an example. 40) Complete the concept paper based on ‘Use of Biotechnology in Human Health’. e un 41) Write the answers to the following questions regarding cloning. a) What is cloning? b) What is reproductive cloning? ,P c) What is therapeutic cloning? d) Which animal was created by cloning technique? e) Explain the advantages of cloning technique. 42)What does the next picture show? What will be the effect? M RT 43)What does the next picture mean? E SC 44) Observe the figure and write the answers to the questions asked. a) What does this picture show? b) Explain any two reasons for this problem. c) Name any two solutions to solve this problem. 47 45) Write answers to the questions based on the paragraph. Social health is the ability of a person to establish relationships with other persons. Ability to change one’s own behaviour according to changing social conditions is an important characteristic of social health. A socially healthy person can also cope with a variety of social situations. Can behave appropriately and adaptable to changing circumstances. Your spouse can match such people with your co-workers and form good relationships. All of these relationships require good communication. It is important to have empathy and a sense of responsibility for each other. On the other hand, there are negative shades like jealousy, revenge, and loneliness. If there is tension in the relationship, healthy relationships will not be formed. Stress management, e planning appropriate measures e.g. Regular exercise,deep breathing, and a positive attitude can improve social health. un a) What is social health? b) What qualities are needed to build good social relationships? c) Which vices have negative consequences? ,P d) What measures would you take for stress management? e) Give two examples of negative shades. 46) What factors determine social health? M 47) What are the changes in a person due to constant contact with the internet, mobile, phone? RT 48) Write the answers to the questions by observing the picture. E SC a) What is the concept shown in the picture? b) Write its benefits. c) What do you do when you feel stressed? ********** 48