In the TCA cycle, FADH2 is formed during

Question

In the TCA cycle, FADH2 is formed during (A) conversion of succinyl Co-A to succinate. (B) conversion of citrate to cis-aconitate. (C) conversion of succinate to fumarate. (D) conversion of fumarate to malate.

Tardigrade Admin · Accepted Answer

In the citric acid cycle, FADH2 is formed during the sixth step where dehydration results in the conversion of succinate to fumarate. In this step, two hydrogen atoms are transferred to FAD which produces FADH2 . So, the correct answer is option 3. <img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/b-hjdd8qu7tlq3t2x3.jpg" />

Q. In the TCA cycle, $F A D H_{2}$ is formed during

conversion of succinyl Co-A to succinate.

conversion of citrate to cis-aconitate.

conversion of succinate to fumarate.

conversion of fumarate to malate.

In the citric acid cycle, $F A D H_{2}$ is formed during the sixth step where dehydration results in the conversion of succinate to fumarate. In this step, two hydrogen atoms are transferred to FAD which produces $F A D H_{2}$ .
So, the correct answer is option 3.

Q. In the TCA cycle, FADH2​ is formed during