Absorbed alcohol is metabolized in the liver to acetaldehyde by

Aldehyde dehydrogenase

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Alcohol dehydrogenase

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Both A and B

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None of the above

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Solution

The correct option is C Alcohol dehydrogenase
Alcohol dehydrogenase is a group of dehydrogenase enzymes, that occur in many organisms and facilitate the interconversion between alcohols and aldehydes or ketones with the reduction of NAD+ to NADH. In humans, they serve to break down alcohols that otherwise are toxic to the aldehyde.
So, the correct answer is option B.

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Assertion: In alcoholic drink, the alcohol is converted to glucose in liver.

Reason: Liver cels are able to produce glucose from alcohol by back fermentation.

A g N O_{3}

N H_{4} O H

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