Question

After complete oxidation of a glucose molecule, ______ number of ATP molecules are formed.

Options

• 18

• 28

• 38

• 48

Answer 1

After complete oxidation of a glucose molecule, 38 number of ATP molecules are formed.

Explanation:

Complete aerobic oxidation of one glucose yields a net 2 ATP from glycolysis, 2 ATP from the Krebs cycle (substrate‑level), and about 34 ATP from oxidative phosphorylation (from NADH and FADH2), giving a total of 38 ATP.