Question

Number of oxygen molecules required for aerobic oxidation of one pyruvate is

• A. 6
• B. 8
• C. 10
• D. 12

Answer 1

Answer: (A)

6

A- Aerobic respiration occurs in two steps-1. Glycolysis which does not require oxygen and 2. the krebs cycle that requires oxygen to breakdown the pyruvate molecules. In krebs cycle oxidation of three carbon compound pyruvate into ATP takes place. For every molecule of Pyruvate to be broken down, 6 molecules of oxygen is required.

So, the correct answer is '6'