Full SCIENCE SECTION TEAS EXAM 2024-2025 ACTUAL EXAM 200+ QUESTIONS AND CORRECT DETAILED A, Exams of Life Sciences

Download Full SCIENCE SECTION TEAS EXAM 2024-2025 ACTUAL EXAM 200+ QUESTIONS AND CORRECT DETAILED A and more Exams Life Sciences in PDF only on Docsity! Full SCIENCE SECTION TEAS EXAM 2024 1. What are the three types of salivary glands and where are they located in the mouth? - correct answer - Parotid, sublingual, and submandibular glands located in the roof of the mouth, cheeks, and under the jawbone, respectively. 2. Which of the following substances is excreted by the kidneys to regulate blood pressure? - correct answer - Renin 3. What is the chemical formula for water? - correct answer - H20 4. Which of the following units is used to indicate length? - correct answer M 5. researcher collects data on the number of cars passing through a busy intersection at different times of the day for a month. This data would be most useful to analyze which of the following: - correct answer - traffic patterns during rush hour 6. What is the largest organ in the human body by surface area? - correct answer - Skin 7. Which of the following describes the function of ligaments? - correct answer - Ligaments attach two bones 8. What is the difference between innate and adaptive immunity? - correct answer - Innate immunity is present at birth while adaptive immunity is acquired after exposure to pathogens. 9. Which of the following is responsible for carrying amino acids to ribosomes during protein synthesis? - correct answer - tRNA 10. What are the steps involved in the scientific method? - correct answer - Observation, hypothesis, prediction, experimentation, analysis, conclusion. 11. What is the difference between a solid and a liquid? - correct answer - Solids have a definite shape and volume while liquids have a definite volume but no fixed shape. 12. Which part of the respiratory system is responsible for regulating breathing rate and depth? - correct answer - Diaphragm 13. What is the difference between a monosaccharide and a disaccharide? - correct answer - Monosaccharides are simple sugars that cannot be further broken down into simpler sugars while disaccharides are composed of two simple sugars. 14. Which of the following is the process by which DNA is copied into RNA? - correct answer - Transcription 15. What is the role of calcium in muscle contraction? - correct answer - Calcium is released from the sarcoplasmic reticulum to initiate the sliding of actin and myosin filaments. 16. What is the name of the dome-shaped muscle that plays a key role in breathing? - correct answer - Diaphragm 17. What is the role of the epididymis in sperm maturation? - correct answer - The epididymis stores and protects sperm cells until ejaculation. 18. Which of the following is a function of the respiratory system? - correct answer - Exchange of gases between the body and the environment Full SCIENCE SECTION TEAS EXAM 2024 19. What is the difference between isotonic and isometric muscle contractions? - correct answer - Isotonic contractions produce movement while isometric contractions produce no movement. 20. Which of the following is a characteristic of innate immunity - correct answer - It provides immediate, non-specific protection. 21. Which of the following is NOT one of the four primary tissue types found in the human body? - correct answer - Exocrine glandular 22. Which of the following is a type of genetic mutation that involves the insertion or deletion of one or more nucleotides in a DNA sequence? - correct answer - Frameshift mutation 23. Which of the following describes the process of osmosis? - correct answer - Movement of water molecules from an area of high concentration to an area of low concentration through a selectively permeable membrane. 24. Which of the following is a chemical property of a substance? - correct answer - Reactivity with acid 25. Which statement best defines the difference between a physical change and a chemical change? - correct answer - A physical change involves the rearrangement of atoms and molecules while a chemical change involves the formation of new substances with different chemical properties. 26. During embryonic development, which of the following germ layers forms the nervous system? - correct answer - Ectoderm 27. What is the primary pigment responsible for photosynthesis in plants? - correct answer - Chlorophyll a 28. Which of the following is an example of an exothermic reaction? - correct answer - Burning wood 29. Which of the following statements is true regarding vaccines? - correct answer - Vaccines work by exposing the individual to a weakened or inactivated form of the pathogen 30. What is the function of ribosomes in a cell? - correct answer - To synthesize proteins in the cell 31. Which of the following is an example of a double-blind study? - correct answer - Both participants and researchers do not know which group participants are assigned to 32. What is the name of the hormone that regulates blood sugar levels in the human body? - correct answer - Insulin 33. What is the primary physiological function of erythrocytes in the human circulatory system? - correct answer - Transportation of oxygen to body tissues 34. What is the name of the joint that allows for rotation of the arm at the shoulder? - correct answer - Shoulder joint Full SCIENCE SECTION TEAS EXAM 2024 70. Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders. In which of the following ways should the hypothesis be modified, given the new findings? - correct answer - Worm infestation reduces the severity of certain autoimmune disorders 71. Which of the following is correct regarding the pH scale? - correct answer - A substance with a pH of 3 is 10 times more acidic than a substance with a pH of 4 72. Nitrogen gas is an extremely stable molecule because of which of the following? - correct answer - Triple covalent bonds 73. Which of the following substances protects the skin from ultraviolet radiation? - correct answer - Melanin 74. Which of the following statements best supports the hypothesis that viruses can cause cancer? - correct answer - Genes that regulate cell division are found in some viruses 75. Which of the following physiological responses is caused by the release of antidiuretic hormone? - correct answer - Increase in water reabsorption in the collecting duct 76. Which of the following is the number of protons in a lithium atom? - correct answer 3 77. Which of the following summarizes a change that takes place as a solid turns to a liquid? - correct answer Particles become less ordered. 78. The pleura is a connective tissue sheath that covers which of the following organs? - correct answer Lung 79. Which of the following vessels carries oxygenated blood? - correct answer - Pulmonary vein 80. Which of the following is the function of a totipotent cell? - correct answer - Develops into any kind of cell. 81. Which of the following can lead to a tsunami? - correct answer - Earthquakes 82. Testosterone is categorized as which of the following types of hormones? - correct answer - Androgen 83. In a phase diagram, which of the following is the term used for a substance held at a temperature and pressure where the solid, liquid, and gaseous states of a substance exist simultaneously? - correct answer - Triple point 84. Which of the following best describes the result of using a catalyst in a chemical reaction? - correct answer - The reaction is completed in a shorter amount of time 85. Which of the following substances is responsible for donating H+ ions to act as a buffer when blood pH rises? - correct answer - Carbonic acid 86. To separate genomic DNA fragments by size, which of these laboratory methods is most useful? - correct answer - Electrophoresis 87. Hikers who found a human body at high altitude in the Italian Alps thought the man had died recently, but tests indicated he was shot with an arrow more than 5,300 years ago. Which of the following would be the best reason for prolonged preservation of the Full SCIENCE SECTION TEAS EXAM 2024 body? - correct answer - The body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found 88. Experiments cannot validate hypotheses, only falsify them. The statement above can be restated in which of the following ways? - correct answer - A hypothesis that has not been falsified remains provisional 89. In which of the following regions of the body are the tibia and fibula? - correct answer - Crural 90. Which of the following functions does the myelin sheath perform for a nerve cell? - correct answer - Insulation 91. Which of the following occurs in an oxidation reaction? - correct answer - Removal of electrons 92. Punnet Square 93. An organism with an unknown genotype is crossed with another organism that shows the recessive trait (aa). The Punnet square below shows the results. Which of the following is the unknown genotype? - correct answer Aa 94. To accurately measure the density of a series of small irregular solids made of plastic, wood, fibreglass, and glass, a student will need which of the following laboratory tools? - correct answer - Graduated cylinder, water, weighing balance 95. Emphysema caused by damage to alveoli from toxins and pollutants is likely to result in the body having difficulty performing which of the following actions? - correct answer - Exchanging oxygen and carbon dioxide 96. For which of the following reasons does a chloride ion have a negative charge? - correct answer - It gained an electron 97. Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia? - correct answer - Urea 98. The triple point of a substance is the temperature and pressure at which the substance exists as which of the following? - correct answer - Simultaneously in solid, liquid, and gas phases 99. A patient goes to the doctor with a cold and sore throat and asks for antibiotics. The doctor refuses to prescribe antibiotics to the patient because the illness is caused by which of the following pathogens? - correct answer - Virus 100. Which of the following is an efferent neuron that is responsible for releasing a neurotransmiter that stimulates a muscle cell to contract? - correct answer - Motor neuron 101. Which of the following is the process in which an ovarian follicle matures and releases a reproductive egg? - correct answer - Ovulation 102. Which of the following structures is present in both prokaryotic and eukaryotic cells? - correct answer - Cell membrane Full SCIENCE SECTION TEAS EXAM 2024 103. Which of the following actions allows for repolarization of a neuron? - correct answer - The opening of potassium channels allowing potassium to leave the neuron 104. Which of the following structures is an exocrine gland? - correct answer - Parotid gland 105. Which of the following is the function of a totipotent cell? - correct answer - Develops into any kind of cell 106. Which of the following classes of biological molecules includes enzymes? - correct answer - Proteins 107. Which of the following substances is responsible for donating H+ ions to act as a buffer when blood pH rises? - correct answer - Carbonic acid 108. Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders. In which of the following ways should the hypothesis be modified, given the new findings? - correct answer - Worm infestation reduces the severity of certain autoimmune disorders. 109. If a portion of a strand of DNA bases reads 3'TCGATCGCA 5', what would the sequence of bases on the complementary strand read? - correct answer 5'AGCTAGCGT 3' 110. Which of the following best describes the result of using a catalyst in a chemical reaction? - correct answer The reaction is completed in a shorter amount of time. 111. An individual suffers severe blunt trauma to the thoracic cavity. Which of the following organs are at greatest risk from this injury? - correct answer - Heart and lungs 112. Which of the following is correct regarding the pH scale? - correct answer - A substance with a pH of 3 is 10 times more acidic than a substance with a pH of 4. 113. Which of the following is a component of the integumentary system that secretes pheromones? - correct answer - Apocrine gland 114. Which of the following processes causes most of the carbon dioxide from the blood to move into the alveoli? - correct answer - Diffusion down a concentration gradient 115. Which of the following growth curves shows a population that is at its carrying capacity? - correct answer B 116. Lipids absorbed in the small intestine will first enter which of the following structures? - correct answer - Lacteal vessels 117. Which of the following layers of skin lack blood vessels? - correct answer - Epidermis 118. Which of the following immune system molecules creates holes in the cell membranes of their target cells in order to destroy the cell? - correct answer - Perforins Full SCIENCE SECTION TEAS EXAM 2024 150. Which of the following statements best supports the hypothesis that viruses can cause cancer? - correct answer - Genes that regulate cell division are found in some viruses. 151. Which of the following is the approximate threshold value for mammalian neurons? - correct answer - -55 Mv 152. Which of the following is the function of a totipotent cell? - correct answer - Develops into any kind of cell 153. To separate genomic DNA fragments by size, which of these laboratory methods is most useful? - correct answer - Electrophoresis 154. In a hypertonic solution, water flows through aquaporins embedded in the plasma membrane of the cell. This type of transport is best known as which of the following? - correct answer - Osmosis 155. Which of the following allows the AIDS virus, which contains RNA, to insert viral DNA into the DNA of a host T-cell after the AIDS virus enters the cell? - correct answer - Reverse transcriptase, an enzyme encoded by the virus. 156. In the following data table of an experiment carried out at 4° C (39.2° F) over 4 hours, which of the following options represents the dependent variable? - correct answer - Bag mass change 157. In a plant in which fuzzy leaves (F) are dominant over smooth leaves (f), which of the following crosses will produce only offspring with smooth leaves? - correct answer ff x ff 158. In a phase diagram, which of the following is the term used for a substance held at a temperature and pressure where the solid, liquid, and gaseous states of a substance exist simultaneously? - correct answer - Triple point 159. Which of the following indicates the function of sodium bicarbonate released by the pancreas? - correct answer - Sodium bicarbonate neutralizes the acidity of chyme. 160. Which of the following substances protects the skin from ultraviolet radiation? - correct answer - Melanin 161. Which of the following is the structure through which blood exits the glomerulus? - correct answer - Efferent arteriole 162. Osteoporosis results from which of the following? - correct answer - A decline in osteoblast activity while osteoclast activity continues at expected levels 163. Which of the following is the atomic number of an atom that has 12 protons and 12 neutrons? - correct answer 12 164. Hikers who found a human body at high altitude in the Italian Alps thought the man had died recently, but tests indicated he was shot with an arrow more than 5,300 years ago. Which of the following would be the best reason for prolonged preservation of the body? - correct answer The body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found Full SCIENCE SECTION TEAS EXAM 2024 165. Which of the following substances is responsible for donating H+ ions to act as a buffer when blood pH rises? - correct answer - Carbonic acid 166. Which of the following microorganisms lack their own metabolic pathways and can only reproduce inside of a host cell? - correct answer - Viruses 167. Which of the following vessels carries oxygenated blood? - correct answer - Pulmonary vein 168. Testosterone is categorized as which of the following types of hormones? - correct answer - Androgen 169. Which of the following chemicals is released by one type of immune cell to directly activate another type of immune cell? - correct answer - Cytokines 170. In a certain plant, red flowers are dominant over white flowers. A plant heterozygous for red flowers and a plant with white flowers are crossed. Which of the following is the expected proportion of phenotypes in the next generation? - correct answer - 2 red, 2 white 171. Which of the following are used to determine a person's DNA sequence? - correct answer - Genes 172. Which of the following reasons explains why it is important for new scientific findings to be published? - correct answer - Other scientists can validate or disprove the findings. 173. The measurement indicated by the line across the center of the cell is best referred to as which of the following? - correct answer - Diameter 174. Which of the following summarizes a change that takes place as a solid turns to a liquid? - correct answer - Particles become less ordered. 175. The cytoskeleton of a cell is comprised of which of the following macromolecules? - correct answer - Proteins 176. Lithium has an atomic number of 3 and a mass number of 7. Which of the following is the number of protons in a lithium atom? - correct answer 3 177. Which of the following can lead to a tsunami? - correct answer - Earthquakes 178. Which of the following is the main function of centrosomes in animal cells? - correct answer - Microtubule organization 179. Which of the following physiological responses is caused by the release of antidiuretic hormone? - correct answer - Increase in water reabsorption in the collecting duct 180. Which of the following is the process in which an ovarian follicle matures and releases a reproductive egg? - correct answer - Ovulation 181. Which of the following glands synthesizes antidiuretic hormone? - correct answer - Hypothalamus 182. Which of the following organic molecules contain both an amine and carboxyl group? - correct answer - Proteins Full SCIENCE SECTION TEAS EXAM 2024 183. Which of the following respiratory structures is affected by a disease that disrupts gas exchange, such as emphysema? - correct answer - Alveoli 184. The vermiform appendix extends from the region of the large intestine known as which of the following? - correct answer - Cecum 185. Which of the following structures drains oxygen-depleted blood from the kidneys? - correct answer - Renal Vein 186. Which of the following distinguishes endocrine and exocrine glands from another? - correct answer - The presence or absence of ducts 187. Which of the following organs removes nitrogenous waste from the body? - correct answer - Kidneys 188. Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia? - correct answer - Urea 189. in pea plants, green pod color (6) is dominant to yellow pod color ( A cross was done between a plant with green pods and a plant with yellow pods. Of the resulting offspring 50% had green pods and 50% had yellow pods. Which of the following were the genotypes of both parent plants? - correct answer - Gg x gg 190. Which of the following structures is present in both prokaryotic and eukaryotic cells - correct answer - Cell membrane 191. Which of the following would result in an increase in the chemical reaction? - correct answer - Using a mortar and pestle to grind a solid reactant to a powder 192. Which of the following atoms is most likely to become a cation? - correct answer - Fluorine, atomic number 9 193. Which of the following cells transfers pigment granules to adjacent epidermal cells? - correct answer - Melanocytes 194. in which of the following locations does fertilization of an egg cell typically occur? - correct answer - Fallopian Tube 195. Which of the following pathways best represents the expected flow of blood from the human heart to an organ? - correct answer - Blood pumped from the heart first enters arteries that then narrow to form arterioles that deliver blood to capillaries of the organ 196. The hip is an example of which of the following type of joints? - correct answer - Ball-and-socket 197. Which of the following is an example of a biological macromolecule? - correct answer - Nucleic acid, Protein 198. Which of the following demonstrates a chemical reaction of water? - correct answer - Water produces gas with sodium metal 199. The component of an atom that possesses relatively little mass, thus being negligible in calculating the atomic mass number, is the: - correct answer - Electron Full SCIENCE SECTION TEAS EXAM 2024 230. Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders, in which of the following ways should the hypothesis be modified, given the new findings? - correct answer - Worm infestation reduces the severity of certain autoimmune disorders 231. The vermiform appendix extends from the region of the large Intestine known as which of the following? - correct answer - Cecum 232. Which of the following atoms is most likely to become a cation? - correct answer - Potassium, atomic number 19 233. Which of the following respiratory structures is affected by a disease that disrupts gas exchange, such as emphysema? - correct answer - Alveoli 234. In pea plants, green pod color (G) is dominant to yellow pod color (g). A cross was done between a plant with green pods and a plant with yellow pods. Of the resulting offspring, 50% had green pods and 50% had yellow pods. Which of the following were the genotypes of both parent plants? - correct answer Gg x gg 235. Which of the following structures drains oxygen-depleted blood from the kidneys? - correct answer - Renal vein 236. When a volcano erupts, its actions are similar to which of the following events? - correct answer - A can of soda fizzing when it is opened. 237. Which of the following would result in an increase in the rate of a chemical reaction? - correct answer - Using a mortar and pestle to grind a solid reactant to a powder 238. The hip is an example of which of the following type of joints? - correct answer - Ball-and-socket 239. Which of the following distinguishes endocrine and exocrine glands from one another? - correct answer - The presence or absence of ducts 240. Which of the following pathways best represents the expected flow of blood from the human heart to an organ? - correct answer - Blood pumped from the heart first enters arteries that then narrow to form arterioles that deliver blood to capillaries of the organ. 241. Which of the following cells transfers pigment granules to adjacent epidermal cells? - correct answer - Melanocytes 242. Which of the following is an example of a biological macromolecule? - correct answer - Nucleic acid, Protein 243. In which of the following locations does fertilization of an egg cell typically occur? - correct answer - Fallopian tube 244. Which of the following demonstrates a chemical reaction of water? - correct answer - Water produces gas with sodium metal. Full SCIENCE SECTION TEAS EXAM 2024 245. Which of the following hormones regulates blood calcium levels? - correct answer - Parathyroid hormone 246. Which of the following tools can be used to measure the turbidity of a liquid by measuring the transmission of light through the sample? - correct answer - Spectrophotometer 247. The component of an atom that possesses relatively little mass, thus being negligible in calculating the atomic mass number, is the - correct answer - Electron 248. Which of the following tissues lines the interior surfaces of the heart? - correct answer - Endocardium 249. Which of the following contains a human's hereditary information? - correct answer - Chromatin 250. Which of the following molecules contains the fewest covalent bonds? - correct answer - Chlorine molecule (Cl) 251. If a portion of a strand of DNA bases reads 5' AGCTAGCGT 3, what would the sequence of bases on the complementary strand read? - correct answer 3' TCGATCGCA5' 252. Which of the following nucleotides is only found in RNA? - correct answer - Uracil 253. Which of the following organelles is the site of intracellular digestion? - correct answer - Lysosomes 254. Which of the following types of cells stimulates other immune cells to attack and destroy foreign agents? - correct answer - Helper T-cells 255. A slice of apple left on a table slowly goes brown due to an enzymatic reaction. Dipping the apple slice in lemon juice prevents it from browning Which of the following best explains this result? - correct answer - Lemon juice has a pH which inactivates the enzymes. 256. Which of the following parts of the eukaryotic cell is responsible for making ATP? - correct answer - Mitochondria 257. Which of the following characteristics of water helps explain why coastal areas experience less dramatic temperature changes during the day than more inland areas? - correct answer - Water has a high specific heat capacity. 258. Which of the following is the term given to the sequence of nucleotides that contains the information to make a specific protein molecule? - correct answer - Gene 259. Which of the following body systems breaks down proteins into amino acids? - correct answer - Digestive 260. Which of the following is classified as a noninfectious disease? - correct answer - Psoriasis 261. Using the equation pH= -log [H+], a solution with a [H+]= 10-9 M has a pH of which of the following? - correct answer 9 Full SCIENCE SECTION TEAS EXAM 2024 262. In order to determine the effects of energy drinks on women's running speed, researchers gave 300 women an energy drink and then recorded the time it took each of them to run 2 miles. After collecting the results, researchers concluded that energy drinks increase the speed of running in women. Which of the following further tests would best help to support this conclusion? - correct answer - Repeat the experiment, giving half of the women water and the other half the energy drink. 263. If A represents atomic mass and Z represents atomic number, which of the following describes an atom after a proton is emitted from its nucleus? - correct answer A-1,Z-1 264. Which of the following describes one difference between skeletal muscles and cardiac muscles? - correct answer - Cardiac muscles contain intercalated discs, whereas skeletal muscles do not. 265. Water molecules enter cells by which of the following transport mechanisms? - correct answer - Facilitated diffusion 266. The "gray matter" of the brain is largely made up of which of the following? - correct answer - Neuron cell bodies 267. An experienced mountaineer decides to climb Mount Everest, taking the same route in the same season and with similar materials and equipment used in a fatal 1924 expedition. Which of the following is the scientific purpose of such a climb? - correct answer - To assess why the earlier expedition failed 268. Escherichia coli is plated on nutrient agar plates that each contain a different type of antibiotic. The shaded area represents the growth of the bacteria. Which of the following plates contains bacteria that were most resistant to the antibiotic? - correct answer B