Question

Pyruvic acid is the end product of glycolysis. What are the three metabolic fates of pyruvic acid under aerobic and anaerobic conditions? Write in the space provided in the diagram.

Answer 1

The three metabolic products formed under aerobic and anaerobic conditions are
(i) Lactic acid
(ii) ethanol
(iii) Acetyl Co -A
Lactic acid is formed by the oxidation of pyruvic acid in under anaerobic condition in skeletal muscles.
Ethanol is formed by the oxidation of pyruvic acid in yeast under anaerobic condition.
Acetyl Co-A is tousled by the oxidation of pyruvic a. that take piace Mt. the mitochondria under aerobic condition.
Pyruvic acid + $Co-A+NA{D}^{+}\frac{Mg2+}{\text{Pyruvate dehydrogenase}}AcetylCo-A+C{O}_2+NADH+H^{+}$