TEAS 7 Science Questions PDF

TEAS 7 SCIENCE Questions with Answers 94% 1. Lifelong protection after exposure to a virus such as chickenpox is due to which of the following types of immunity? o Nonspecific o Innate o Transplantation o Active 2. Which of t...

TEAS 7 SCIENCE Questions with Answers 94% 1. Lifelong protection after exposure to a virus such as chickenpox is due to which of the following types of immunity? o Nonspecific o Innate o Transplantation o Active 2. Which of the following is an example of active transport? o Aquaporins in kidney cells that help concentrate urine o Movement of substance from an area of high concentration to an area of low concentration o Movement of a sodium and potassium across the cell membrane against their CONCENTRATION GRADIENT. o Loss of water from a cell in a hypertonic solution 3. Which of the following body cavities is subdivided into the thoracic and abdominopelvic cavities? o Dorsal o Cranial o Ventral o Vertebral Davis Craig | Beststudy Academics ([email protected]/[email protected])  4. Which of the following is a part of pulmonary circuit? o Superior vena cava o Pulmonary vein o Bronchial artery o Aorta 5. Carbohydrates are composed of which of the following? o Nucleic acids o Monosaccharides o Isoprenoids o Amino acids 6. Histones are proteins associated with which of the following? o Blood o Sperm cells o Hair follicles o DNA 7. When an ionic salt is dissolved in water, the ions CO3 and K+ are formed. Which is the formula for the salt? o KCO3 o K2CO3 Davis Craig | Beststudy Academics ([email protected]/[email protected])  o K3CO2 o K(CO3)2 8. Which of the following elements has the smallest atomic radius? o Ge o C o Sn o Si 9. Carbon has an atomic number of 6. Which of the following is true about isotope C-12 o C-12 possesses 6 neutrons and 6 protons in its nucleus o C-12 possesses 7 neutrons and 5 electrons in its nucleus o C-12 possesses 7 protons and 5 neutrons in its nucleus o C-12 possesses 6 protons and 6 electrons in its nucleus 10. Which of the following best describes adaptive immunity? o The body’s barrier defences, such as mucous membranes and secretions o The initiation of internal defences, such as phagocytes and natural killer cells o The initiation of the inflammatory response o A response to specific traits of specific pathogens. Davis Craig | Beststudy Academics ([email protected]/[email protected])  11. Which of the following describes why water has a concave, or downward-curving meniscus when poured in a glass beaker? o Glass has a higher density than water o Water has a higher density than glass o The adhesive forces with the glass are greater than the cohesive forces o The cohesive forces with the glass are greater than the adhesive forces. 12. The following diagram summaries the carbonic acid-bicarbonate ion buffer system of the blood CO2+H2O H2CO3  HCO3- +H+ Which of the following equations shows the reaction that takes place when there are excessive H+ ions? o H2CO3  CO2 + H2O o HCO3- + H+  H2CO3 o CO2 + H2O  H2CO3 o H2CO3  HCO3- +H+ 13. A student investigating the importance of wavelengths above and below the visible spectrum for photosynthesis sets up an experiment as follows over a 2-month period, all with illumination at 1-meter distance from plants grown with the same sol and watering conditions:  3 Arabidopsis plant exposed to ultraviolet light (UV)  3 Arabidopsis plants exposed to infrared light (IR) Davis Craig | Beststudy Academics ([email protected]/[email protected])   3 Arabidopsis plants exposed to white light At the end of the experiment, she finds that the IR treated plants are scorched, the UV treated plants have wilted, but the white light created plants are growing normally. Which of the following statements is most likely to be correct? o Three plants do not produce sufficient replications to draw a conclusion o Wavelength of lights the only variable that has been changed between groups o The wavelength of light does not affect photosynthesis o Infracted light contains more energy than the other wavelengths. 14. Which of the following is a property of water? o Water is made up of one molecule of hydrogen and two molecules of oxygen o Water dissolves polar iconic compounds o Water requires less heat than ethanol to raise its temperature o Solid water is denser than liquid water 15. Mutations in which of the following types of cells can be inherited by offspring? o Ovarian o endocrine o neural o muscle Davis Craig | Beststudy Academics ([email protected]/[email protected])  16. Which of the following pancreatic secretions digests starch into disaccharides? o Trypsin o Chymotrypsin o Amylase o Lipase 17. A cell is placed in a hypertonic solution. Which of the following describes the resulting osmosis? o There is no flow of water o The net flow of water into and out of the cell is zero o There is a net flow of water out of the cell o There is a net flow of water into the cell 18. Which of the following structures is a flap of cartilage that prevents the movement of food into the trachea? o Glottis o Pharynx o Epiglottis o Larynx Davis Craig | Beststudy Academics ([email protected]/[email protected])  19. Which of the following structures is present in both prokaryotic and eukaryotic cells? o Endoplasmic reticulum o Chloroplast o Cell membrane o Golgi apparatus 20. Which of the following layers of skin contains glands and hair follicles? o Hypodermis o Stratum corneum o Stratum lucidum o Dermis 21. Which of the following describes the function of tendons? o Tendons attach skeletal muscles to bones o Tendons attach two bones o Tendons attach bones to ligaments o Tendons attach skeletal muscles to ligaments 22. Which of the following actions does a hydrophilic hormone take to activate a target cell? o The hormone binds to cell-surface receptors of the target cells o The hormone binds to a cytosolic receptor in the target cell Davis Craig | Beststudy Academics ([email protected]/[email protected])  o The hormone enters a target cell through a transport protein o The hormone passes through the plasma membrane of the target cell. 23. Which of the following is a weakness of a correlational study? o Cannot be replicated o Cannot determine causation o Inability to control independent variables o Too many variables to control 24. During muscle contraction, myosin is directly responsible for which of the following? o Initiating an action potential along the sarcolemma o Forming cross bridges with actin molecules o Binding to troponin molecules o Releasing calcium from sarcoplasmic reticulum 25. Which of the following vessels is responsible for carrying blood from the upper body to the right atrium of the heart? o Pulmonary veins o Aorta o Pulmonary arteries o Superior vena cava Davis Craig | Beststudy Academics ([email protected]/[email protected])  26. How many times larger is the volume of a cube that is 4 mm on all sides compared to the volume of a cube that is 2 mm on all sides (round the answer to the nearest whole number). 8 = 43 divided by 23 27. Which of the following statements correctly describes the change in coat colouring of an arctic for from brown in summer to white in winter? o The fox’s phenotype changes, but the genotype does not o The fox’s genotype changes, but the phenotype does not o Both the phenotype and genotype of the fox change o Neither the phenotype nor the genotype of the fox change 28. Permanent damage to which of the following types of tissues in the spinal cord will cause paralysis o Nervous tissue o Muscle tissue o Bone tissue o Connective tissue 29. The shortening of a sarcomere in skeletal muscle is directly due to the interactional of which of the following? Davis Craig | Beststudy Academics ([email protected]/[email protected])  o Acetylcholine and acetylcholinesterase o Pepsin and pepsinogen o Myosin and actin o Dynein and kinesin 30. Which of the following terms describes the removal of metabolic waste from the body? o Secretion o catabolism o anabolism o excretion 31. Which of the following substances is excreted by sweet glands in response to the breakdown of protein and the formation of ammonia? o Lysoymes o Water o Urea o Sebum 32. Identify the pathway of blood trough the components of the cardiovascular system, starting with the blood entering the heart through the superior vena cava. (select options in the correct order. use all options) **Homework – study how blood moves in and out of the heart and answer this one.** Davis Craig | Beststudy Academics ([email protected]/[email protected])  o Pulmonary artery o Lungs o Right atrium o Right ventricle o Pulmonary valve 33. A vasectomy is a procedure in which the vas deferens are cut. Which of the following describes why a vasectomy leads to infertility? o The vasectomy block the movement of sperm from the prostate gland to the bulbourethral gland o The vasectomy blocks the movement of sperm from the epididymis into urethra o The vasectomy blocks the movement of sperm from the ejaculatory duct into the bulbourethral glad o The vasectomy blocks movement of sperm from a testis into the epididymis 34. Which of the following occurs during inhalation? o Air moves from areas of low pressure to areas of high pressure o The diaphragm moves downwards o The ribcage lowers o The volume of the thoracic cavity decreases Davis Craig | Beststudy Academics ([email protected]/[email protected])  35. A scientist predicts that germinating beans will use more oxygen than non- germinating beans. This prediction is referred to as which of the following? o A conclusion o An observation o A hypothesis o Date collection 36. Which of the following describes the process by which solid carbon dioxide (dry ice) turns directly into carbon dioxide gas? o Sublimation o Deposition o Condensation o Evaporation 37. An equal mass of which of the following states of matter could completely fill either a 100 ml or 500 ml container? o Gas o Solid o Mixture o Liquid Davis Craig | Beststudy Academics ([email protected]/[email protected])  38. Which of the following parts of the central nervous system releases chemicals that regulate the pituitary gland? o Hypothalamus o Cerebellum o Thalamus o Spinal cord 39. Which of the following allows the AIDS virus, which contains RNA to insert viral DNA into the DNA of a host T-cells after the AIDS virus enters the cells o Receptor proteins located on the surface of the virus o Reverse transcriptase, an enzyme encoded by the virus o The phospholipids found on the envelope of the virus o The protein that makes up the capsid of the virus 40. If a portion of a strand of DNA bases reads 5’AGCTAGCGT 3’. What would the sequence of bases on the complementary strand read? o 3’TCGATCGCA5’ o 5’TCGUTCGU3’ o 5’UCGAUCGCA3’ o 3’AGCTAGCGT5’ Davis Craig | Beststudy Academics ([email protected]/[email protected])  41. Which of the following processes causes most of the carbon dioxide from the blood to move into alveoli? o Active transport using energy o Diffusion down a concentration gradient o Conversion to carbon monoxide o Passive transport using carrier proteins 42. Which of the following units is used to indicate mass? o Cm3 o Irm o Mg o Ml 43. Which of the following body systems develop from the same origin tissue as lungs? o Genitourinary system o Musculoskeletal system o Neuromuscular system o Gastrointestinal 44. A researcher is gathering large amounts of data about patients who have a common disease and the effectiveness of various medications in comparison to a placebo. Which of the following types of graphs is the best way for the researcher to present the data? Davis Craig | Beststudy Academics ([email protected]/[email protected])  o Bar graph o Line graph o Pie chart o Flow chart 45. A researcher collects high-resolution photographs of the earth taken from outer space at annual intervals for the last decades. This data would be most useful to analyse which of the following? o Human movement during crises o Migration patterns of large whales o Weather patterns during hurricanes o Deforestation in the rainforest Beststudy Academics Founder: Davis Craig Contacts: [email protected] [email protected] **DON’T SHARE THIS FILE** Davis Craig | Beststudy Academics ([email protected]/[email protected])