Q.

Choose the correct statement with respect to respiration.

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a

Fermentation shows the oxidation of NADH+H+

b

Anaerobic breakdown of pyruvic acid has substrate level phosphorylation reaction.

c

In fermentation alcohol is formed due to reduction of Pyruvic acid without decarboxylation.

d

Alcohol fermentation has oxidative decarboxylation reaction.

answer is A.

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Detailed Solution

In fermentation by lactic acid bacteria and in the skeletal muscle cells of man, pyrivic acid is reduced to lactic acid due to oxidation of glycolytic NADH+H+. In alcohol fermentation as seen in yeast, acetaldehyde is reduced to alcohol by using glycolytic NADH+
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