Question

The TCA cycle produces _____________

(a) 2 FADH2

(b) 3 FADH2

(c) 4 FADH2

(d) 1 FADH2

Answer 1

Correct choice is (a) 2 FADH2

To explain: The primary products of the TCA cycle pathway are the reduced coenzymes, NADH and FADH2, which contain high energy electrons removed from various substrates as they are oxidized. A total of 2 FADH2 are formed during one Krebs’ cycle process.