In how many steps, CO₂ is released in aerobic respiration of pyruvic acid

Options

(a) one
(b) six
(c) three
(d) twelve

Correct Answer:

three

Explanation:

In aerobic respiration, CO₂ is produced at 3 step:
(i) During acetyl Co-A formation.
(ii) During formation of a-ketoglutaric acid in kreb’s cycle.
(iii) During succinic acid formation in kerb’s cycle.