NEET Botany TCA Cycle MCQ Question
Which combination of statements about the TCA cycle is correct?
The TCA cycle oxidizes succinyl-CoA to oxaloacetic acid and produces GTP through substrate-level phosphorylation.
NAD+ is reduced to NADH in two points of the TCA cycle, while FAD is reduced only once.
The cycle requires oxygen directly for the oxidation of acetyl CoA.
Oxaloacetic acid, the first member of the cycle, is continuously replenished during the TCA cycle.
Correct Answer
Detailed Explanation
Statement A is correct as the TCA cycle does oxidize succinyl-CoA to oxaloacetic acid and produces GTP via substrate-level phosphorylation. Statement B is incorrect as NAD+ is reduced at three points. Statement C is misleading since oxygen is not a direct reactant in the TCA cycle itself. Statement D is correct but not listed as the correct combination with A.
Found an issue with this question?