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• 2. The fatty acid designated 18:2c9,12 is best described as a _______ fatty acid.(A) saturated(B) u
• 3. When glucagon binds to its receptor on a liver cell, which of the following sequence of eventsocc
• 4. For each molecule of acetyl-CoA that enters the citric acid cycle, which of the following bestrep
• 5.Which of the following is the most important regulatory enzyme in fatty acid synthesis?(A) citrate
• 6. Which of the following would be considered a biosynthetic pathway?(A) glycolysis(B) glycogen synt
• 7. What is the oxidant in the following reaction?(A) ethanol(B) NAD+(C) acetaldehyde(D) NADH(E) H+
• 8. What is the source of acetyl-CoA for the glyoxylate cycle?(A) pyruvate(B) amino acids(C) fatty ac
• 9. Lactose, the disaccharide of galactose and glucose, is synthesized from which of the followingact
• 10. Which of the following coenzymes is required for the decarboxylation of pyruvate by thepyruvate
• 11. Which of the following causes denaturation of a protein when disulfide bonds are present?(A) hea
• 12.Which of the following leads to the formation of atherosclerotic plaques?(A) non-specific interac
• 13. Which of the following represents a correct compartmentation of a biochemical process withits ce
• 14. Which of the following polysaccharides contains exclusively glucose in ᵦ(14) glycosidicbonds?(A
• 15. What is a polyribosome?(A) ribosomes that synthesize different subunits of the same protein(B) s
• 16. Which of the following DNA polymerases is correctly defined?(A) polymerase I: DNA repair(B) poly
• 17. Which of the following is the regulatory step in cholesterol synthesis?(A) HMG-CoA synthase(B) H
• 18. In the citric acid cycle, acetyl-CoA reacts with ________ to produce _________.(A) fumarate； ᵦ-k
• 19. Which of the following correctly identifies key elements present on the exterior ofGram-negative
• 20. How many stereoisomers would be expected from a ketohexose?(A) 4(B) 8(C) 16(D) 32(E) 64
• 21. Which of the following does not specifically cause a membrane to be more rigid or fluid, butrath
• 22. Movement of ions across a cell membrane by the Na/K ATPase is best described as ________.(A) sod
• 23. Which of the following formulas would be a carbohydrate(A) C5H12O5(B) C4H8O6(C) C6H10O6(D) C3H8O
• 24. Which enzyme catalyzes the primary regulation site of glycolysis?(A) hexokinase(B) phosphofructo
• 25. Which of the following shows the overall equation for the light reactions?(A) 2 H2O + 1 NADP+ →
• 26. Which of the following would likely form micelles in an aqueous solution?(A) hexane(B) glucose(C