The compound that enters the Krebs cycle and combines with oxaloacetic acid is
A)citric acid.
B)pyruvic acid.
C)acetyl-CoA.
D)phosphoglyceraldehyde.

Question

Quizplus · Accepted Answer

Acetyl-CoA is the compound that enters the Krebs cycle and combines with oxaloacetic acid to form citric acid, the first molecule in the Krebs cycle. Pyruvic acid and phosphoglyceraldehyde are not directly involved in the Krebs cycle, although they are intermediates in other metabolic pathways.

The Compound That Enters the Krebs Cycle and Combines with Oxaloacetic