4 ????? What is the purpose of the glyoxylate cycle? In answering this, keep in
ID: 856988 • Letter: 4
Question
4 ?????
What is the purpose of the glyoxylate cycle? In answering this, keep in mind that acetylCoA is obtained not only by catabolism of carbohydrate but also from the catabolism of fatty acids.
A. To allow "fat" (that is, fatty acids from triglycerides) to be converted to glucose in humans.
B. To allow "fat" (that is, fatty acids from triglycerides) to be converted to carbohydrate in plants.
C. To synthesize coenzyme A from acetyl CoA.
D. All of the above.
Point Value: 3
19.This question has not been answered completely
Which of the following is true about electron transport?
A. This is part of Stage 3 of catabolism.
B. This is part of State 2 of catabolism.
C. This is not a part of catabolism.
D. This can be considered a several-step process by which NAD(+) is oxidized in mitochondria.
Point Value: 3
20.This question has not been answered completely
Recall this basic equation (from section 20.2 of your text):
dGo' = - nF(dEo')
Now, imagine a redox reaction in which dEo' is positive (greater than 0). Also recall the mathematical relationship between dGo' and Keq'.
Which of the following is true (if dEo' > 0)?
A. At equilibrium, the reactants will predominate over the products.
B. At equilibrium, the products will predominate over the reactants.
C. This reaction will not proceed spontaneously under physiological conditions.
D. From the value of dEo' (alone), we can could calculate dG and determine the direction of the reaction.
Point Value: 3
21.This question has not been answered completely
What is NOT a function of Coenzyme Q (also called CoQ; uniquinone; ubiquinol) in the electron transport system?
A. Transfering electrons from NADH-Q oxidoreductase to Q-cytochrome c oxidoreductase
B. Transfering electrons from Succinate-Q reductase to Q-cytochrome c oxidoreductase
C. Transfering electrons from Q-cytochrome c oxidoreductase to cytochrome c oxidase
D. All of the above are functions of Coenzyme Q.
Explanation / Answer
1.
Answer -> C . To synthesize coenzyme A from acetyl CoA.
The purpose of glyoxylate is the conversion of acetyl CoA to glucose.
19.
Answer -> A. This is part of Stage 3 of catabolism.
The third stage is electron transfer from electron carriers to the electron transfer chain.
20.
Answer -> 2. B. At equilibrium, the products will predominate over the reactants.
21.
Answer -> 4. D All of the above are functions of Coenzyme Q.
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