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• 77. How are the urea cycle and the citric acid cycle interconnected? (A) Both cycles share the same
• 78. In which organs does gluconeogenesis primarily occur in mammals? (A) Brain, muscles, and erythro
• 79. Which of the following is responsible for reducing molecular O2 to H2O in the respiratory chain
• 80. Which of the following metal ions in heme can bind oxygen reversibly? (A) Fe2+ (B) Mg2+ (C) Ca2+
• 23. Which of the following pairs is interconverted in the process of mutarotation? (A) D-glucose and
• 24. The biochemical property of lectins that is the basis for most of their biological effects is th
• 25. The citric acid cycle is considered part of aerobic metabolism even though oxygen does not appea
• 26. Immobilized metal affinity chromatograpby (IMAC) is an important tool for recombinant protein pu
• 27. N-linked glycosylation is a common form of post-translational modification. Which of the followi
• 28. PNGase F is the most effective enzyme for removing N-linked oligosaccharides from glycoproteins
• 29. Which of the following statements about the Bohr effect regarding hemoglobin's oxygen bindi
• 30. Most covalent catalysis is carried out by enzymes using a: (A) ping-pong kinetic mechanism. (B)
• 31. Steroid hormone response elements (HREs) are_____，which, when bound to_______， alter gene expres
• 32. For enzymes in which the slowest (rate-limiting) step is the reactionKm becomes equivalent to: (
• 33. Which of the following statements about glycolysis is correct?(1) Conversion of glucose to glyce
• 34. Which of the following statements about the following reaction is correct?Citrate + COA-SH + ATP
• 35. Concerning the pathway for ketone body synthesis, all of the following make sense except (A) Thr
• 36. Which of the following statement(s) is correct regarding the regulation of fatty acid synthesis
• 37. The synthesis of 1 molecule of cholesterol requires________ molecule of isopentenyl pyrophosphat
• 38. The urea cycle and citric acid cycle are linked by (A) arginine and fumarate. (B) citrulline and
• 39. Approximately how many ATP molecules are netted from the complete oxidation of stearic acid (C-1
• 40. Gout is caused by high levels of uric acid. What are the possible causes? (A) Glucose-6-phosphat
• 41. What situation is most likely to cause the formation of ketone bodies?(1) Starvation (2) Gout (3
• 42. Glucose breakdown in certain mammalian and bacterial cells can occur by mechanisms other than cl
• 43._____is often used in carboxylation reactions while ______is often used in decarboxylation reacti