9. Which one of the following enzymatic activities would be decreased by thiamine deficiency?
(A) Fumarase
(B) Isocitrate dehydrogenase
(C) Malate dehydrogenase
(D) Succinate dehydrogenase
(E) a-Ketoglutarate debydrogenase complex

5.Which vitamin is derived from cholesterol? (A) A (B) B12 (C) D (D) E (E) K

6. The shortest o helix segment in a protein that will span a membrane bilayer has about_____amino acid residues. (A) 5 (B) 20 (C) 50 (D) 100 (E) 200

7. Which of the following statements concerning receptor enzymes is correct? (A) They are not usually membrane-associated proteins. (B) They contain an enzyme activity that acts upon a cytosolic substrate. (C) They contain an enzyme activity that acts upon the extracellular ligand. (D) They have a ligand-binding site on the cytosolic side of the membrane. (E) They have an active site on the extracellular side of the membrane

8. Glycolysis is the name given to a metabolic pathway occurring in many different cell types. It consists of 11 enzymatic steps that convert glucose to lactic acid. Glycolysis is an example of: (A) aerobic metabolism. (B) anabolic metabolism. (C) a net reductive process. (D) fermentation. (E) oxidative phosphorylation.

10. Which of these is able to cross the inner mitochondrial membrane? (A) Acetyl-CoA (B) Fatty acyl-carnitine (C) Fatty acyl-CoA (D) Malonyl-CoA (E) None of the above can cross.

複選題16.Some neurotransmitters or biological amines are derived from the decarboxyl amino acids. Which amino acids are the precursors for the biosynthesis of (A) dopamine, (B) γ-aminobutyrate (GABA), (C) histamine,(D) serotonin, and (E) epinephrine. (5%)

複選題20.What are the enzymes inhibited by the medical agents or drugs listed b (A)Fluorouracil, (B) Methotrexate, (C) Acetaminophen, (D) Oseltamivir, (E) Nirmatrelvir in Paxlovid.

複選題21. Please use hemoglobin as the example to describe the biochemical terms listed below. (10%) (A) prosthetic group. (B) allosteric regulation. (C) protein quaternary structure. (D) protein isoform. (E) substrate analog inhibitor.

71. What is the primary focus of Polly Furniture Manufacturer's new employee perk? (A) Enhancing technical skills. (B) Promoting teamwork and collaboration. (C) Expanding the product line. (D) Improving work-life balance.

72. What does the CEO believe is the key to the company's success? (A) Cutting costs. (B) Expanding globally. (C) Taking care of the team. (D) Increasing production.