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• 9. The critical function of the sodium-potassium pump of neurons is to move(A)Na+ and K+ into the ce
• 10. Which of the following characteristics is common to both viruses and bacteria(A)infection pathwa
• 11. The neurotransmitter released at neuromuscular junctions in vertebrates is(A)acetylcholine.(B)se
• 12. The lacteal, a lymphatic vessel in the center of each intestinal villus, functions in digestion
• 13. Which of the following is a true statement about virus (A) all viruses have capsids and membrane
• 14. Which of the following is not the components of an operon(A)operator.(B)promoter.(C)co-repressor
• 15. Which of the followings is NOT true for cilia or flagella?(A)They are involved in cell motility.
• 16. Which of the following scientist-discoveries is mismatched?(A)Watson and Crick – DNA structure.(
• 17. Which of the following statements best describes DNA polymerase?(A)It is an enzyme required to p
• 18. A DNA specimen that contains 30% guanine has ________ thymine.(A)10%(B)20%(C)30%(D) 40%(E) The a
• 19. Bile is crucial for ______ digestion because of its function in _____.(A)protein, protecting the
• 20. Which animal would you predict would have the highest mass-specific metabolic rate?(A)a lizard(B
• 21. Which structure prevents blood flowing back into the atria during ventricular contractions?(A)at
• 22. Which of the following statements about RNA polymerase in bacteria is INCORRECT?(A)It binds the
• 23. Surgical removal of the pancreas would(A)increase the acidity of the small intestine.(B)prevent
• 24. What protein is involved in synthesizing messenger RNA in eukaryotes?(A)RNA polymerase I(B)RNA p
• 25. The respiratory centers that control ventilation of the lungs in mammals are located in the(A)br
• 26. The ascending portion of the loop of Henle is(A)permeable to water and impermeable to sodium.(B)
• 27. MicroRNAs (miRNAs)(A)are long RNA molecules.(B)promotes post-translational modification of prote
• 28. Which of these hormone-effect pairs is mismatched?(A)growth hormone-linear growth(B)glucagon-blo
• 29. Alternation of generations means(A)One phase of the life cycle takes place on land and the other
• 30. The tracheae of adult terrestrial insects have been a factor in the great abundance of insects b
• 31. Sister chromatids separate during(A)prophase of meiosis I.(B)metaphase of meiosis I.(C)metaphase
• 32. The nearest living relatives of crocodiles and alligators are(A)snakes.(B)birds.(C)turtles.(D) l
• 33. Collagen is most likely found in which tissue type?(A)Nervous(B)Muscle(C)Epithelial(D) Connectiv