Krebs Cycle (TCA): Steps and Significance · NCERT Biology

FAD is reduced to FADH2 during which specific conversion in the TCA cycle?

  1. Isocitrate to Alpha-ketoglutarate
  2. Succinyl-CoA to Succinate
  3. Succinate to Fumarate
  4. Fumarate to Malate
Show answer and explanation

Correct answer: Succinate to Fumarate

The oxidation of the 4-carbon succinate into fumarate involves the removal of two hydrogens. These are accepted by FAD (Flavin Adenine Dinucleotide) to form FADH2.

Difficulty: Medium Question 8 of 20

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