Question

During the citric acid cycle (TCA) how many times the cycle must turn until an entire GLUCOSE molecule is completely oxidized?

A.) 2

B.) 4

C.) 1

D.) 3

Answer 1

Option A. 2

Two cycles of citric acid cycle are required to completely oxidize a glucose molecule.

During glycolysis one glucose molecule produces two pyruvate molecules.

In each TCA cycle one pyruvate is used two completely oxidize the glucose two pyruvates should be used during TCA cycle so two cycles of TCA cycle are required