Which of the following is the end product of anaerobic respiration?
Correct answer: D. Ethyl alcohol
- A. Methyl alcohol
- B. Acetaldehyde
- C. Formaldehyde
- D. Ethyl alcohol
Explanation
Each pyruvic acid molecule produced during glycolysis is converted to ethyl alcohol in two steps. In the first step pyruvic acid is decarboxylated under the action of enzyme to produce acetaldehyde, a two carbon molecule. NADH+H+ reduces acetaldehyde to ethyl alcohol.CH3.CO.COOH → CH3.CHO + CO2CH3.CHO + NADH + H+ → CH3.CH2.OH + NAD+
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