TCA Cycle – Section 1

21. Which one of the following is not the intermediate of Kreb’s cycle?

A. Isocitrate
B. Succinate
C. Fumarate
D. Stearate

Correct Answer: D. Stearate

22. Which one is not the main protein in the electron transport chain?

A. NADH dehydrogenase
B. Cytochrome bc1 complex
C. Cytochrome oxidase
D. Citrate synthase

Correct Answer: D. Citrate synthase

23. How many ATPs are produced during the citric acid cycle?

A. 10
B. 13
C. 12
D. 8

Correct Answer: C. 12

24. The FADH2 and NADH produced by the oxidation of one acetyl-CoA results in the synthesis of about

A. 3 ATPs
B. 6 ATPs
C. 11 ATPs
D. 15 ATPs

Correct Answer: C. 11 ATPs

25. In eukaryotes, electron transport occurs in

A. membranes and mitochondria
B. endoplasmic reticulum
C. cytoplasm
D. all of the above

Correct Answer: A. membranes and mitochondria

Leave A Comment?

two × 4 =