Question

Before combining with the oxaloacetic acid of citric acid cycle the pyruvic acid changes into

• A. 4 carbon compound
• B. 3 carbon compound
• C. 2 carbon compound
• D. 6 carbon compound

Answer 1

The correct option is C 2 carbon compound

Pyruvic acid is the end product of glycolysis, which occurs in the cytoplasm of the cell. Pyruvic acid before combining with the oxaloacetic acid of citric acid cycle changes into acetyl CoA, which is a 2 carbon compound. This reaction is catalysed by pyruvate dehydrogenase.