Question

According to your text, in which of the following steps of the TCA cycle is NADH/FADH2 not produced?

A) TCA-2
B) TCA-3
C) TCA-4
D) TCA-6
E) TCA-8

Answer 1

NADH/FADH2 is not produced in step TCA-4 of the TCA cycle.

Step-by-step explanation:

In the TCA cycle, also known as the citric acid cycle or Krebs cycle, NADH/FADH2 is produced in several steps. However, there is one step in which NADH/FADH2 is not produced, which is TCA-4. During TCA-4, the enzyme succinate thiokinase converts succinyl CoA into succinate and GTP, but NADH/FADH2 is not produced.