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• 14. Which of the following statement is the most likely explanation to support these observations?
• 15. Lipid-soluble signaling molecules, such as aldosterone, can diffuse across the cell membranes bu
• 16. A genetic mutation causes frame shift because? (A) a change of a nucleotide in a gene does not a
• 17. Which of the following about anaerobic and aerobic respirations is NOT TRUE? (A) Both use glycol
• 18. Which of the following about enzyme is NOT TRUE? (A) All enzymes are proteins (B) The active sit
• 19. Which of the following descriptions best fits the class of molecules known as nucleotides (A) a
• 20. What is the tertiary structure of a protein (A) order in which amino acids are joined in a polyp
• 21. What is the advantage of light microscopy over electron microscopy (A) light microscopy provides
• 22. Telomere shortening puts a limit on the number of times a cell can divide. Research has shown th
• 23. Which of the following consists of nine doublets of microtubules surrounding a pair of single mi
• 24. What is the difference between pinocytosis and receptor-mediated endocytosis (A) pinocytosis bri
• 25. Why the sodium-potassium pump (ATPase) is called an electrogenic pump (A) It pumps equal quantit
• 26. Besides turning enzymes on or off, what other means does a cell use to control enzymatic activit
• 27. The synthesis of ATP by oxidative phosphorylation, using the energy released by movement of prot
• 28. Why are C4 plants able to photosynthesize with no apparent photorespiration? (A) They do not par
• 29. Which of the following sequences correctly represents the flow of electrons during photosynthesi
• 30. Which process is most directly driven by light energy (A) creation of a pH gradient by pumping p
• 31. Binding of a signaling molecule to which type of receptor leads directly to a change in the dist
• 32. How is plant cell cytokinesis different from animal cell cytokinesis? (A) The contractile filame
• 33. Which of the following DOSE NOT participate directly in the mitosis (A) Actin (B) Microtubule (C
• 34. A given organism has 46 chromosomes in its nucleus. Therefore, we can conclude that it must (A)
• 35. Homologous chromosomes (A) are identical (B) carry information for the same traits (C) carry the
• 36. Mendel crossed yellow-seeded and green-seeded pea plants and then allowed the offspring to self-
• 37. When Thomas Hunt Morgan crossed his red-eyed F1 generation flies to each other, the F2 generatio
• 38. Bioinformatics includes all of the following except (A) using computer programs to align DNA seq