Question

In alcohol fermentation

• A. Triose phosphate is the electron donor while acetaldehyde is the electron acceptor
• B. Triose phosphate is the electron donor while pyruvic acid is the electron acceptor
• C. There is no electron donor
• D. Oxygen is the electron acceptor

Answer 1

The correct option is A Triose phosphate is the electron donor while acetaldehyde is the electron acceptor

In alcohol fermentation, the pyruvic acid (triose phosphate) produced through glycolysis is subjected to the oxidative decarboxylation, wherein the pyruvic acid is converted to the acetaldehyde. The acetaldehyde accepts the electrons and is reduced to form the alcohol or ethanol. There is no external electron acceptor involved as in case of aerobic respiration

So, the correct answer is 'triose phosphate is the electron donor while the acetaldehyde is the electron acceptor'