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• 3. Which amino acid is called a helix breaker because of its unusual R group that creates a bend in
• 4. What is the role of the ribosome in polypeptide elongation during protein translation? (A) Remove
• 5. Which word describes the energy-requiring metabolic pathways that yield complex molecules from si
• 6. At physiologic blood pH, what is the primary ionic form of ammonia? (A) N2 (B) NH2 (C) NH3 (D) NH
• 7. Which protein structure is affected primarily by hydrogen bonding? (A) Primary structure (B) Seco
• 8. Which of the following statements regarding muscle contraction is correct? (A) During muscle cont
• 9. Which of the following RNA molecules exhibit catalytic activity? (A) mRNA (B) tRNA (C) rRNA (D) m
• 10. Which amino acids are exclusively ketogenic? (A) Arginine and lysine (B) Lysine and leucine (C)
• 11. Which post-translational modifications can occur in the serine residue of a protein? (A) Glycosy
• 12. Which of the following is NOT a common feature shared by most transduction systems for hormones
• 13. The plasma membrane of E. coli consists of approximately 75% lipids and 25% proteins by weight.
• 14. Which of the following statements is true regarding monoclonal antibodies when compared to polyc
• 15. Which molecule is involved in HDL-mediated reverse cholesterol transport (RCT) to the liver? (A)
• 16. Identify the correct monomers for starch and glycogen from the following options: (A) α-D-glucos
• 17. What can lead to the development of the human genetic disease phenylketonuria (PKU)? (A) A defic
• 18. Which transport process requires the input of energy? (A) Facilitated diffusion (B) Passive diff
• 19. Which structural feature is most prevalent in myosin molecules? (A) The α helix (B) The β struct
• 20. Which of the following statements about aromatic amino acids is correct? (A) All are strongly hy
• 21. FADH2 is a product of which of the following reactions? (A) Malate → Oxaloacetate (B) Pyruvate →
• 22. All are important reasons to phosphorylate glucose in the first step of glycolysis EXCEPT: (A) t
• 23. All are true for the isomerase reaction of glucose-6-phosphate to fructose-6-phosphate EXCEPT: (
• 24. Triose phosphate isomerase is very similar in function to: (A) hexokinase (B) phosphoglucoisomer
• 25. For the pyruvate kinase catalyzed reaction, the correct sequence of events is:A. phosphoryl grou
• 26. The tangling of DNA strands during replication is prevented by (A) Topoisomerases (B) Helicases
• 27. DNA transposition can cause gene _____ (A) Duplication (B) Deletion (C) Transcription (D) Both A