wed by reduction 87. All are characteristics of the phosphofructokinase-1 cataly
ID: 280328 • Letter: W
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wed by reduction 87. All are characteristics of the phosphofructokinase-1 catalyzed reaction EXCEPT: a. "valve" controlling the rate of glycolysis. b. exergonic. c. "priming reaction" d. commits the cell to metabolize glucose. e. all are true. 88. Which of the following is the major advantage of a multi-enzyme complex? a. the product of one enzyme is passed directly to the next enzyme without the possibility of b. it's large size enables it to span an entire membrane c. multi-enzyme complexes are much less likely to be inhibited d. all of the above e. none of the above 89. In the case of shared anabolic and catabolic pathways, the serve as the points of regul a. largest enzymes b. ATP producing enzymes c. rate-limiting enzymes d. NADH utilizing enzymes e. all are true 90. Inhibition of the citric acid cycle at isocitrate dehydrogenase increases the levels of citrate increase the production of a. lactate and alanine. b. glyoxylate and cytosolic acetyl-CoA. c. succinate and fumarate. d. pyruvate and oxaloacetate. e. amino acids. 91. What causes pyridoxal-5-phosphate (PLP) to be so versatile? a. Its ability to form a Schiff base and act as an electron sink. b. Its ability to transfer methyl groups. c. Its ability to be a one or two electron carrier d. It reacts very quickly with simple sugars. e. The formation of a thioester bond. 92, Aspartate is formed from transamination ofExplanation / Answer
Hi Answer:
87.All are the characteristics of the phosphofructokinase-1 catalyzed reaction except
Answer: Option E [All are true]
88.Which of the following is the major advantage of a multi-enzyme complex
Answer: Option A.[ the product of one enzyme is passed directly to the next enzyme without the possibility of diffusion]
89.In the case of shared anabolic and catabolic pathways the,……..serve as the points of regulation
Answer: Option C [Rate limiting enzymes]
90.Inhibition of the citric acid cycle at isocitrate dehydrogenase increases the levels of citrate increases the production of
Answer: Option B [glyoxylate and cytosolic acetylCoA.]
91.What causes pyridoxal-5-phosphate (PLP) to be so versatile?
Answer: Option A [Its ability to form a Schiff base and act as an electron sink.]
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