試題詳解

35. Which of the following statements is     true    :

(1) In glyoxylate cycle, conversion of isocitrate to succinate replaces the two reductive reactions of the TCA cycle.

(2) Isocitrate dehydrogenase catalyzes the conversion of isocitrate to succinate and glyoxylate. (3) Glyoxylate + acetyl-CoA → Coenzyme A + malate catalyzed by malate synthase.

(4) Glyoxylate + acetyl-CoA → Coenzyme A + malate occurs in mitochondria.

(5) Using glyoxylate cycle, plants can use the acetyl-CoA produced in fatty acid metabolism to produce oxaloacetate and other intermediates for carbohydrate synthesis.
(A) 3 and 5.
(B) 1, 3, and 5.
(C) 1, 2, 3, and 5.
(D) 1, 3, 4, and 5.
(E) All of the above.