Quiz Bee Questions (G11 and G12) PDF

GRADE 11 QUIZ QUESTIONS Round 1: Easy (15 Questions) 1. What is the chemical symbol for water? A. H2O B. O2 C. H2 D. CO2 Correct Answer: H2O 2. Which planet is known as the "Red Planet"? A. Earth B. Mars C. Jupiter D. Venus Correct Answer: Mars 3. What is the powerhouse of the cell? A. Nucleus B...

GRADE 11 QUIZ QUESTIONS Round 1: Easy (15 Questions) 1. What is the chemical symbol for water? A. H2O B. O2 C. H2 D. CO2 Correct Answer: H2O 2. Which planet is known as the "Red Planet"? A. Earth B. Mars C. Jupiter D. Venus Correct Answer: Mars 3. What is the powerhouse of the cell? A. Nucleus B. Ribosome C. Mitochondria D. Endoplasmic Reticulum Correct Answer: Mitochondria 4. What gas do plants absorb from the atmosphere? A) Oxygen B) Nitrogen C) Carbon Dioxide D) Hydrogen Correct Answer: Carbon Dioxide 5. What is the main component of the Earth's core? A. Iron B. Nickel C. Copper D. Aluminum Correct Answer: Iron 6. What organ is responsible for pumping blood throughout the body? A. Brain B. Liver C. Heart D. Lungs Correct Answer: Heart 7. Which process do plants use to make their food? A. Respiration B. Photosynthesis C. Digestion D. Fermentation Correct Answer: Photosynthesis 8. Which of the following is a mammal? A. Shark B. Sparrow C. Dolphin D. Crocodile Correct Answer: Dolphin 9. What type of energy is stored in food? A) Kinetic energy B) Thermal energy C) Chemical energy D) Nuclear energy Correct Answer: Chemical energy 10. What is the most abundant gas in the Earth's atmosphere? A. Oxygen B. Carbon Dioxide C. Nitrogen D. Argon Correct Answer: Nitrogen 11. What is the process by which liquid water becomes vapor? A. Precipitation B. Evaporation C. Condensation D. Sublimation Correct Answer: Evaporation 12. Which part of the cell contains genetic material? A. Cytoplasm B. Cell membrane C. Nucleus D. Ribosome Correct Answer: Nucleus 13. What is the primary function of white blood cells? A. Carry oxygen B. Clot blood C. Fight infections D. Digest food Correct Answer: Fight infections 14. Which human organ is primarily responsible for detoxification? A. Heart B. Liver C. Kidney D. Pancreas Correct Answer: Liver 15. What is the chemical formula for table salt? A. NaCl B. KCl C. CaCl2 D. Na2SO4 Correct Answer: NaCl 16. Which type of bond involves the sharing of electron pairs? A. Ionic bond B. Covalent bond C. Metallic bond D. Hydrogen bond Correct Answer: Covalent bond 17. What is the pH level of pure water? A. 7 B. 0 C. 14 D. 10 Correct Answer: 7 18. Which organelle is known as the "suicide bag" of the cell? A. Mitochondria B. Lysosome C. Ribosome D. Golgi apparatus Correct Answer: Lysosome 19. What is the main function of the xylem in plants? A. Transport nutrients B. Transport water C. Photosynthesis D. Support structure Correct Answer: Transport water 20. Which vitamin is produced when skin is exposed to sunlight? A. Vitamin A B. Vitamin B12 C. Vitamin C D. Vitamin D Correct Answer: Vitamin D 21. What is the primary function of the large intestine? A. Absorb nutrients B. Digest proteins C. Absorb water D. Produce bile Correct Answer: Absorb water 22. Which layer of the Earth is liquid? A. Crust B. Mantle C. Outer core D. Inner core Correct Answer: Outer core 23. What type of natural selection favors extreme phenotypes? A. Stabilizing selection B. Directional selection C. Disruptive selection D. Sexual selection Correct Answer: Disruptive selection 24. Which structure in the brain regulates balance and coordination? A. Cerebrum B. Cerebellum C. Brainstem D. Hypothalamus Correct Answer: Cerebellum 25. What is the primary energy source for the Earth's ecosystems? A. Wind B. Fossil fuels C. Solar energy D. Geothermal energy Correct Answer: Solar energy 26. Which process converts glucose into energy in the absence of oxygen? A. Aerobic respiration B. Anaerobic respiration C. Fermentation D. Photosynthesis Correct Answer: Anaerobic respiration 27. What type of radiation is used in medical imaging to visualize bones? A. Infrared B. Ultraviolet C. X-rays D. Gamma rays Correct Answer: X-rays 28. Which scientist proposed the theory of evolution by natural selection? A. Gregor Mendel B. Charles Darwin C. Louis Pasteur D. Albert Einstein Correct Answer: Charles Darwin 29. What is the function of chlorophyll in plants? A. Absorb water B. Absorb sunlight C. Store energy D. Produce oxygen Correct Answer: Absorb sunlight 30. Which process involves the breakdown of glucose to produce ATP? A. Photosynthesis B. Glycolysis C. Fermentation D. Cellular respiration Correct Answer: Cellular respiration 31. Which gas is a major contributor to acid rain? A. Carbon Dioxide B. Sulfur Dioxide C. Methane D. Nitrogen Correct Answer: Sulfur Dioxide 32. Which part of the brain is responsible for higher cognitive functions? A. Cerebellum B. Brainstem C. Cerebrum D. Limbic system Correct Answer: Cerebrum 33. What type of biome is characterized by very low temperatures and permafrost? A. Desert B. Tundra C. Tropical rainforest D. Grassland Correct Answer: Tundra 34. What is the main function of the ribosomes in a cell? A. Energy production B. Protein synthesis C. DNA replication D. Photosynthesis Correct Answer: Protein synthesis 35. Which type of macromolecule are enzymes? A. Carbohydrates B. Lipids C. Proteins D. Nucleic acids Correct Answer: Proteins 36. Which law states that energy cannot be created or destroyed? A. Newton's First Law B. Law of Conservation of Mass C. Law of Conservation of Energy D. Boyle's Law Correct Answer: Law of Conservation of Energy Round 3: Hard (15 Questions) 37. What is the main function of the Golgi apparatus? A. Energy production B. Packaging and modifying proteins C. DNA replication D. Photosynthesis Correct Answer: Packaging and modifying proteins 38. Which organ in the human body is primarily responsible for regulating blood sugar levels? A. Liver B. Pancreas C. Kidney D. Spleen Correct Answer: Pancreas 39. What is the primary function of the myelin sheath? A. Protect the neuron B. Speed up nerve impulses C. Store neurotransmitters D. Produce hormones Correct Answer: Speed up nerve impulses 40. Which type of selection leads to the evolution of resistance in pests? A. Stabilizing selection B. Directional selection C. Disruptive selection D. Artificial selection Correct Answer: Directional selection 41. What is the end product of glycolysis? A. Lactic acid B. Glucose C. Pyruvate D. Acetyl CoA Correct Answer: Pyruvate 42. Which principle explains the variation in population sizes in ecosystems? A. Homeostasis B. Ecological succession C. Carrying capacity D. Biogeochemical cycles Correct Answer: Carrying capacity 43. What type of mutation involves a change in a single nucleotide? A. Deletion B. Insertion C. Point mutation D. Frame shift mutation Correct Answer: Point mutation 44. What is the primary role of the endocrine system? A. Transport nutrients B. Regulate hormones C. Protect against pathogens D. Control movement Correct Answer: Regulate hormones 45. Which chemical reaction type is used in photosynthesis? A. Hydrolysis B. Redox C. Decomposition D. Combustion Correct Answer: Redox 46. What is the term for organisms that produce their own food? A. Heterotrophs B. Autotrophs C. Decomposers D. Scavengers Correct Answer: Autotrophs 47. Which type of RNA is responsible for carrying amino acids to the ribosome? A. mRNA B. rRNA C. tRNA D. snRNA Correct Answer: tRNA 48. What is the name of the process where a cell undergoes programmed cell death? A. Apoptosis B. Necrosis C. Mitosis D. Meiosis Correct Answer: Apoptosis 49. Which law states that the pressure of a gas increases as its volume decreases, at constant temperature? A. Charles's Law B. Avogadro's Law C. Boyle's Law D. Gay-Lussac's Law Correct Answer: Boyle's Law 50. What is the main role of DNA polymerase during DNA replication? A. Unwind the DNA strand B. Synthesize new DNA strands C. Repair damaged DNA D. Initiate transcription Correct Answer: Synthesize new DNA strands GRADE 12 STEM QUIZ QUESTIONS ATOMIC THEORY 1. Who first proposed the idea that matter is composed of indivisible particles called atoms? A. John Dalton B. J.J. Thomson C. Ernest Rutherford D. Niels Bohr Correct Answer: John Dalton 2. What experiment led J.J. Thomson to discover the electron? A. Oil drop experiment B. Gold foil experiment C. Cathode ray tube experiment D. Plum pudding model Correct Answer: C. Cathode ray tube experiment 3. Which of the following postulates is part of Dalton’s atomic theory? A. Atoms of the same element are identical in mass and properties. B. Atoms can be created and destroyed. C. Atoms can combine in different ratios to form compounds. D. All of the above are part of Dalton’s theory. Correct Answer: Atoms of the same element are identical in mass and properties. 4. What discovery did Ernest Rutherford make through his gold foil experiment? A. Atoms are indivisible. B. The nucleus is positively charged and very small. C. Electrons are embedded in a positively charged sphere. D. Neutrons exist in the nucleus. Correct Answer: The nucleus is positively charged and very small. 5. What is the primary function of neutrons in an atom? A. Determine the atomic number B. Provide stability to the nucleus C. Participate in chemical bonding D. Control the mass of the atom Correct Answer: Provide stability to the nucleus 6. Which model of the atom replaced the plum pudding model? A. Bohr model B. Rutherford model C. Quantum mechanical model D. Dalton model Correct Answer: Rutherford model 7. According to the quantum mechanical model, what does the term "orbital" refer to? A. A fixed path of an electron B. A region of space where an electron is likely to be found C. The nucleus of the atom D. The energy level of an electron Correct Answer: A region of space where an electron is likely to be found 8. Which of the following scientists is known for developing the concept of quantized energy levels in atoms? A. Niels Bohr B. Louis de Broglie C. Max Planck D. Albert Einstein Correct Answer: Niels Bohr 9. What is the significance of the Heisenberg Uncertainty Principle in atomic theory? A. It describes the fixed paths of electrons. B. It states that the position and momentum of an electron cannot be known simultaneously. C. It defines atomic mass. D. It determines the energy levels of electrons. Correct Answer: It states that the position and momentum of an electron cannot be known simultaneously. 10. What fundamental principle states that energy is quantized and can only be emitted or absorbed in discrete amounts? A. Law of conservation of mass B. Quantum theory C. Dalton’s postulate D. Rutherford's model Correct Answer: Quantum theory 11. What do isotopes of an element have in common? A) Same mass number B) Same number of neutrons C) Same number of protons D) Same chemical properties Correct Answer: Same number of protons 12. Which particle determines the chemical behavior of an atom? A. Neutrons B. Protons C. Electrons D. Nucleus Correct Answer: Electrons 13. In a neutral atom, what is the relationship between the number of protons and electrons? A) Protons > Electrons B) Protons < Electrons C) Protons = Electrons D) No relationship Correct Answer: Protons = Electrons 14. What term describes the total number of protons and neutrons in an atom's nucleus? A) Atomic number B) Mass number C) Isotope number D) Molecule weight Correct Answer: Mass number 15. Which of the following concepts is part of the modern atomic theory? A) Atoms can be divided into smaller particles. B) All atoms of an element are identical. C) Atoms cannot change from one element to another in chemical reactions. D) All of the above Correct Answer: Atoms can be divided into smaller particles. 16. What did Max Planck propose regarding the emission of radiation? A) Energy is continuous. B) Energy is emitted in quantized packets called "quanta." C) Energy is lost as heat. D) Energy cannot be created or destroyed. Correct Answer: Energy is emitted in quantized packets called "quanta." 17. Which of the following particles has a negligible mass compared to protons and neutrons? A) Electron B) Proton C) Neutron D) Nucleus Correct Answer: Electron 18. What did the Bohr model propose about electron arrangement? A. Electrons are randomly distributed. B. Electrons occupy fixed orbits around the nucleus. C. Electrons do not have defined paths. D. Electrons can be found anywhere in the atom. Correct Answer: Electrons occupy fixed orbits around the nucleus. 19. Which quantum number indicates the shape of an electron's orbital? A. Principal quantum number (n) B. Azimuthal quantum number (l) C. Magnetic quantum number (m) D. Spin quantum number (s) Correct Answer: Azimuthal quantum number (l) 20. In what type of reaction do atoms rearrange to form new substances, without changing the number of each type of atom? A) Nuclear reaction B) Chemical reaction C) Physical reaction D) Fusion reaction Correct Answer: Chemical reaction LAYERS OF THE EARTH 1. What is the approximate thickness of the Earth's crust? A) 5-10 km B) 20-30 km C) 30-50 km D) 70-100 km Correct Answer: 20-30 km 2. Which layer of the Earth is primarily composed of molten rock? A) Crust B) Mantle C) Outer core D) Inner core Correct Answer: Outer core 3. What is the primary composition of the Earth's inner core? A) Liquid iron B) Solid iron and nickel C) Silicon and oxygen D) Magnesium and aluminum Correct Answer: Solid iron and nickel 4. Which layer of the Earth is responsible for tectonic plate movement? A) Crust B) Lithosphere C) Mantle D) Outer core Correct Answer: Mantle 5. What is the primary reason for the Earth's magnetic field? A) Movement of the crust B) Flow of molten iron in the outer core C) Rotation of the Earth D) Convection currents in the mantle Correct Answer: Flow of molten iron in the outer core 6. Which layer of the Earth is the thickest? A) Crust B) Mantle C) Outer core D) Inner core Correct Answer: Mantle 7. What is the transition zone in the Earth’s mantle? A) The boundary between the mantle and outer core B) The area where seismic waves slow down C) The region between the upper and lower mantle D) The crust-mantle boundary Correct Answer: The region between the upper and lower mantle 8. Which type of rock is most commonly found in the continental crust? A) Basalt B) Granite C) Gabbro D) Sedimentary rock Correct Answer: Granite 9. What temperature range is found in the Earth's inner core? A) 1000-3000°C B) 3000-5000°C C) 5000-7000°C D) 7000-9000°C Correct Answer: 5000-7000°C 10. What type of seismic waves can travel through both liquid and solid layers of the Earth? A) P-waves B) S-waves C) Surface waves D) None of the above Correct Answer: P-waves 11. What is the main characteristic of the lithosphere? A) It is a fluid layer. B) It includes the crust and the uppermost mantle. C) It is entirely composed of liquid rock. D) It is only found in oceanic regions. Correct Answer: It includes the crust and the uppermost mantle. 12. What is the Mohorovičić discontinuity (Moho)? A) The boundary between the crust and the mantle B) The boundary between the outer and inner core C) The boundary between the lithosphere and asthenosphere D) The boundary between the upper and lower mantle Correct Answer: The boundary between the crust and the mantle 13. What is the composition of the Earth's outer core? A) Solid silicate rock B) Liquid iron and nickel C) Gaseous hydrogen D) Molten granite Correct Answer: Liquid iron and nickel 14. Which layer of the Earth is known for having convection currents that drive plate tectonics? A) Crust B) Lithosphere C) Mantle D) Outer core Correct Answer: Mantle 15. What geological feature is primarily formed at the boundary between tectonic plates in the lithosphere? A) Mid-ocean ridges B) Mantle plumes C) Hotspots D) Mineral deposits Correct Answer: Mid-ocean ridges 16. Which layer of the Earth has the highest density? A) Crust B) Mantle C) Outer core D) Inner core Correct Answer: Inner core 17. *Which of the following correctly describes the asthenosphere?* A. A rigid layer that holds tectonic plates B. A semi-fluid layer beneath the lithosphere C. The outermost layer of the Earth D. The solid part of the inner core Correct Answer: A semi-fluid layer beneath the lithosphere 18. What process is responsible for the generation of magma in the mantle? A. Compression B. Melting of rocks due to high temperature and pressure C. Erosion of the crust D. Sedimentation Correct Answer: Melting of rocks due to high temperature and pressure 19. What role do subduction zones play in Earth's geology? A They create new oceanic crust. B. They are locations where one plate moves under another. C. They are the cause of volcanic eruptions. D. They stabilize tectonic plate movements. Correct Answer: They are locations where one plate moves under another. 20. Which method is primarily used to study the Earth's internal structure? A) Direct observation B) Analysis of meteorites C) Seismic wave analysis D) Geochemical sampling Correct Answer: Seismic wave analysis SCIENTISTS 1. Who is considered the father of modern physics due to his theory of relativity? a) Max Planck b) Isaac Newton c) Albert Einstein d) Galileo Galilei Answer: Albert Einstein 2. Which scientist is known for formulating the laws of planetary motion? a) Johannes Kepler b) Nicolaus Copernicus c) Tycho Brahe d) Galileo Galilei Answer: Johannes Kepler 3. Who discovered the circulation of blood in the human body? a) Andreas Vesalius b) William Harvey c) Hippocrates d) Claudius Galen Answer: William Harvey 4. Which scientist developed the first successful polio vaccine? a) Louis Pasteur b) Jonas Salk c) Edward Jenner d) Robert Koch Answer: Jonas Salk 5. Who is credited with the discovery of penicillin, the first true antibiotic? a) Alexander Fleming b) Joseph Lister c) Robert Koch d) Paul Ehrlich Answer: Alexander Fleming 6. Which scientist is known for proposing the heliocentric model of the universe? a) Ptolemy b) Nicolaus Copernicus c) Johannes Kepler d) Tycho Brahe Answer: Nicolaus Copernicus 7. Who discovered radioactivity and won Nobel Prizes in two different scientific fields? - a) Albert Einstein - b) Niels Bohr - c) Marie Curie - d) Ernest Rutherford Answer: Marie Curie 8. Which scientist’s experiments led to the discovery of the electron? a) J.J. Thomson b) Ernest Rutherford c) Niels Bohr d) James Clerk Maxwell Answer: J.J. Thomson 9. Who is known as the father of modern chemistry? a) Antoine Lavoisier b) Dmitri Mendeleev c) John Dalton d) Joseph Priestley Answer: Antoine Lavoisier 10. Which scientist discovered the structure of DNA? a) Linus Pauling b) Rosalind Franklin c) James Watson and Francis Crick d) Charles Darwin Answer: James Watson and Francis Crick 11. Which scientist is credited with the discovery of oxygen? a) Joseph Priestley b) Antoine Lavoisier c) Robert Hooke d) Michael Faraday Answer: Joseph Priestley 12. Who is famous for the invention of the electric battery? a) Thomas Edison b) Alessandro Volta c) Michael Faraday d) Nikola Tesla Answer: Alessandro Volta 13. Which scientist proposed the three laws of motion? a) Albert Einstein b) Galileo Galilei c) Isaac Newton d) Johannes Kepler Answer: Isaac Newton 14. Who formulated the Uncertainty Principle in quantum mechanics? a) Werner Heisenberg b) Niels Bohr c) Max Planck d) Erwin Schrödinger Answer: Werner Heisenberg 15. Who is known for their contributions to electromagnetism and electromagnetic induction? a) Nikola Tesla b) Michael Faraday c) James Clerk Maxwell d) Heinrich Hertz Answer: Michael Faraday 16. Which scientist developed the general theory of evolution by natural selection? a) Gregor Mendel b) Alfred Wallace c) Charles Darwin d) Thomas Huxley Answer: Charles Darwin 17. Who discovered the neutron in 1932? a) Niels Bohr b) James Chadwick c) Ernest Rutherford d) J.J. Thomson Answer: James Chadwick 18. Who developed the theory of continental drift, proposing that continents move across Earth’s surface? a) Charles Lyell b) Alfred Wegener c) James Hutton d) Harry Hess Answer: Alfred Wegener 19. Which scientist is known for the discovery of X-rays? a) Wilhelm Conrad Roentgen b) Henri Becquerel c) Marie Curie d) Ernest Rutherford Answer: Wilhelm Conrad Roentgen 20. Who formulated the law of universal gravitation? a) Galileo Galilei b) Albert Einstein c) Isaac Newton d) Johannes Kepler Answer: Isaac Newton PERIODIC TABLE OF ELEMENTS 1. What is the correct name for the compound with the formula CO₂? a) Carbon dioxide b) Carbon monoxide c) Carbon trioxide d) Carbonic acid Answer: a) Carbon dioxide 2. What is the name of the compound with the chemical formula Na₂SO₄? a) Sodium sulfide b) Sodium sulfate c) Sodium sulfite d) Sodium sulfuric acid Answer: b) Sodium sulfate 3. Which of the following is the correct name for the compound FeCl₃? a) Iron(I) chloride b) Iron(II) chloride c) Iron(III) chloride d) Iron(IV) chloride Answer: c) Iron(III) chloride 4. What is the correct formula for dinitrogen tetroxide? a) N₂O₄ b) NO₂ c) N₂O d) N₄O₂ Answer: a) N₂O₄ 5. Which of the following is the correct name for H₂SO₄ in aqueous solution? a) Sulfuric acid b) Sulfurous acid c) Hydrosulfuric acid d) Hydrogen sulfide Answer: a) Sulfuric acid 6. What is the name of the compound with the formula PCl₅? a) Phosphorus pentachloride b) Phosphorus trichloride c) Phosphorus hexachloride d) Phosphorus dichloride Answer: a) Phosphorus pentachloride 7. Which of the following is the correct chemical formula for calcium nitrate? a) Ca(NO₃)₂ b) CaNO₃ c) Ca₂NO₃ d) Ca₃N₂ Answer: a) Ca(NO₃)₂ 8. What is the correct name for the compound Mg(OH)₂? a) Magnesium hydroxide b) Magnesium oxide c) Magnesium hydrogen oxide d) Magnesium dihydride Answer: a) Magnesium hydroxide 9. Which element has the atomic number 47? a) Silver b) Gold c) Palladium d) Cadmium Answer: a) Silver 10. What is the correct formula for aluminum sulfate? a) Al₂(SO₄)₃ b) AlSO₄ c) Al(SO₃)₃ d) Al₂(SO₃)₄ Answer: a) Al₂(SO₄)₃ 11. Which of the following is the correct name for K₂CO₃? a) Potassium carbonate b) Potassium bicarbonate c) Potassium carboxylate d) Potassium oxide Answer: a) Potassium carbonate 12. Which of the following compounds is named correctly? a) N₂O: Dinitrogen dioxide b) SO₃: Sulfur trioxide c) HClO: Hydrochloric acid d) NH₄Cl: Ammonia chloride Answer: b) SO₃: Sulfur trioxide 13. Which of the following elements is a noble gas? a) Argon b) Nitrogen c) Fluorine d) Chlorine Answer: a) Argon 14. What is the correct name for the ionic compound BaCl₂? a) Barium dichloride b) Barium chloride c) Barium chloride(II) d) Barium chlorite Answer: b) Barium chloride 15. What is the name of the compound with the chemical formula NH₄NO₃? a) Ammonium nitride b) Ammonium nitrate c) Ammonium nitrite d) Nitrogen ammoniate Answer: b) Ammonium nitrate 16. Which of the following elements is a transition metal? a) Zinc b) Helium c) Sodium d) Silicon Answer: a) Zinc 17. What is the correct name for the compound CuO? a) Copper(I) oxide b) Copper(II) oxide c) Copper oxide d) Copper hydroxide Answer: b) Copper(II) oxide 18. What is the correct formula for sulfur hexafluoride? a) SF₆ b) S₆F c) SF₄ d) S₂F₆ Answer: a) SF₆ 19. Which element has the atomic number 92? a) Uranium b) Plutonium c) Thorium d) Neptunium Answer: a) Uranium 20. What is the name of the compound with the chemical formula CH₄? a) Ethane b) Methane c) Propane d) Butane Answer: b) Methane HUMAN ANATOMY 1. Which of the following structures is located in the alveolar processes? A. Teeth B. Villi C. Hard palate D. Soft palate Correct Answer: A. Teeth 2. The portion of the stomach surrounding the lower esophageal sphincter is called the A. Cardia B. Fundus C. Pylorus D. Antrum Correct Answer: A. Cardia 3. The islets of Langerhans secrete A. Pancreatic juice B. Insulin C. Intrinsic factor D. Inhibiting hormones Correct Answer: B. Insulin 4. The area in the duodenum where the common bile duct and the pancreatic duct empty is called the A. Ampulla of vater  B. Duct of santorini C. Wirsungs duct D. Islets of langerhans Correct Answer: A. Ampulla of vater 5. The primary function of the gallbladder is to A.Store bile B.Produce bile C.Digest fats D.Store fats Correct Answer: A. Store bile 6. The pllicae circulares microvilli and villi are A. All found the large intestine B. Structures that increase surface absorption area in the small intestine C. Glands that secrete digestive enzymes D. Structures that give the intestines its puckered apperance Correct Answer: B. Structures that increase surface absorption area in the small intestine 7. The first part of the small intestine is the A.Duodenum B.Jejunum C.Ileum D.Cecum Correct Answer: A. Duodenum 8. The appendix is attached to the A.Ascending colon B.Descending colon C.Cecum D.Transverse Correct Answer: C. Cecum 9. The double-layered apron like structures that hangs from the lower border of the stomach is the A. Greater omentum B. Mesentery C. Ligamentum D. Peritoneum Correct Answer: A. Greater omentum 10. The main function of the large intestine is to digest A. Digest food B. Absorb food nutrients C. Reabsorb water and electrolytes  D. Digest carbohydrates Correct Answer: C. Reabsorb water and electrolytes 11. A chemical reaction that provides energy by the breakdown of food molecules is called A. Anabolism B. Catabolism C. Metabolism D. Glycogenesis Correct Answer: B. Catabolism 12. Which of the following substances is the body's preferred source of energy? A. Carbohydrates B. Fats C. Proteins D. Water Correct Answer: A. Carbohydrates 13. The process by which glucose is stored in the liver and skeletal muscle cells as glycogen ` A. Gluconeogensis B. Glycogenolysis C. Glycogenesis D. Glycolysis Correct Answer: C. Glycogenesis 14. The structure that binds the small intestine to the posterior abdominal wall is the A. Mesentery B. Greater omentum C. Falciform ligament D. Lesser omentum Correct Answer: A. Mesentery 15. The salivary glands located in the front of the ear that become inflamed and enlarged during mumps are the A. Sublingual B. Subungual C. Parotid D. Submandibular Correct Answer: C. Parotid 16. The catabolism of fats produces which of the following substances A. Amino acids B. Glycogen C. Ketone bodies  D. Insulin Correct Answer: C. Ketone bodies 17. Vitamins A D E & K are absorbed in the A. Intestine B. Pancreas C. Stomach D. Liver Correct Answer: A. Intestine 18. The organ that lies posterior to the greater curvature of the stomach and is connected by a duct to the duodenum is the A. Pancreas B. Gallbladder C. Small intestine D. Liver Correct Answer: A. Pancreas 19. When body cells require energy what molecule is broken down A. ATP molecule B. DNA molecule C. Six carbon molecule D. ADP molecule Correct Answer: A. ATP molecule 20. The outer layer of the intestine is the A. Mucosa B. Serosa C. Muscularis D. Submocosa Correct Answer: B. Serosa 21. The cricoid cartilage is a A. Leaf shaped cartilage lying on top of the larynx B. Ring of cartilage forming the inferior walls of the larynx C. Pair of cone shaped cartilage located at the apex of each arytenoid cartilage D. Tubular passageway for air Correct Answer: B. Ring of cartilage forming the inferior walls of the larynx 22. The passageway for foods and liquids into the digestive system and for air into the respiratory system is the A. Trachea B. Larynx C. Pharynx D. Bronchus Correct Answer: C. pHarynx 23. The larynx is located between the A.Pharynx and trachea B.Nasal cavity and pharynx C.Trachea and bronchus D.Nasal and oral cavities Correct Answer: A. pHarynx and trachea 24. The vocal cords are located in the A. Pharynx B. Larynx C. Trachea D. Bronchi Correct Answer: B. Larynx 25. Which structure has 3 divisions consisting of naso-oropharyngeal? A. Trachea B. Larynx C. Pharynx D. Bronchus Correct Answer: C. pHarynx 26. The function of the trachea is to A. Conduct air to and from the lungs B. Conduct air into the larynx C. Serve as a resonating chamber for speech D. Move the vocal cords Correct Answer: A. Conduct air to and from the lungs 27. The space between the vocal cords is called the A. Epiglottis B. Glottis C. Vocal fold D. Cricoid cartilage Correct Answer: B. Glottis 28. The nasal cavity is divided into two portions by the A. Ethmoid B. Septum C. Vorner D. Turbinates Correct Answer: B. Septum 29. The structure that drains excess tears to the nasal cavity causing the nose to run is the A. Nasopharynx B. Sinus cavities  C. Nasolacrimal duct D. Ciliary glands Correct Answer: C. Nasolacrimal duct 30. The cartilaginous nasal septum lies upon which bone A. Hyoid B. Vomer C. Mandible D. Palatine Correct Answer: B. Vomer 31. The structure that connects the middle ear and the throat allowing the eardrum to vibrate freely is the A. External auditory canal B. Eustachian tube C. Semicircular canal D. Labyrinth Correct Answer: B. Eustachian tube 32. Another name for the tympanic membrane is the A. External ear canal B. Eardrum C. Semicircular canal D. Eustachian tube Correct Answer: B. Eardrum 33. The winding cone-shaped tube of the inner ear is the A. Semicircular canal B. Vestibule C. Cochlea D. Ampulla Correct Answer: C. Cochlea SCIENCE TRIVIAS 1. In what year did Isaac Newton publish his work "Philosophiæ Naturalis Principia Mathematica," which formulated the laws of motion and universal gravitation? A. 1665 B. 1687 C. 1704 D. 1726 Answer: B. 1687 2. When did James Clerk Maxwell publish his theory of electromagnetism? A. 1845 B. 1861 C. 1873 D. 1890 Answer: C. 1873 3. In what year did Rosalind Franklin capture Photo 51, leading to the discovery of the DNA double helix structure? A. 1950 B. 1952 C. 1954 D. 1956 Answer: B. 1952 4. When did Dmitri Mendeleev first publish his periodic table of elements? A. 1860 B. 1869 C. 1871 D. 1885 Answer: B. 1869 5. In what year did Albert Einstein publish his theory of special relativity? A. 1901 B. 1905 C. 1911 D. 1915 Answer: B. 1905 6. When did Wilhelm Röntgen discover X-rays? A. 1888 B. 1895 C. 1902 D. 1910 Answer: B. 1895 7. In what year did Charles Darwin publish "On the Origin of Species," which introduced the theory of evolution by natural selection? A. 1839 B. 1859 C. 1871 D. 1882 Answer: B. 1859 8. When did Edwin Hubble discover that the universe is expanding, marking the foundation of modern cosmology? A. 1923 B. 1929 C. 1932 D. 1937 Answer: B. 1929 9. In what year did Marie Curie win her first Nobel Prize for her work on radioactivity? A. 1903 B. 1908 C. 1911 D. 1913 Answer: A. 1903 10. When did Watson and Crick publish their discovery of the double-helix structure of DNA? A. 1947 B. 1953 C. 1955 D. 1961 Answer: B. 1953