生物化学答案2023

第五章测试

1.For each molecule of glucose converted to pyruvate in the glycolytic pathway ___molecules of ATP are used initially (Stage I) and ___ molecules of ATP are produced (Stage II) for an overall yield of ___ molecules of ATP/ glucose. The "ATP math" is:（ ）.
A:-2 + 5 = 3 B:-1 + 2 = 1 C:-2 + 4 = 2 D:-1 + 4 = 3
答案:C
2.Which compound is NOT the coenzyme of pyruvate dehydrogenase complex?（ ）
A:NAD⁺ B:Biotin C:FAD D:CoASH 3.Which of the following reactions is not a control point in the citric acid cycle?（ ）.
A:Malate dehydrogenase Carbohydrate B:Citrate synthase C:Isocitrate dehydrogenase D:α-Ketoglutarate dehydrogenase 4. Complex II of the electron transport chain shares its enzymatic activity with the citric acid cycle.（ ）
A:错 B:对 5.A variation of the citric acid cycle in plants that allows acetyl-CoA to be converted quantitatively to gluconeogenic precursors is the ___.
6.People feel muscle soreness after intense exercise, and it disappears after a few days. Please explain the phenomenon.