Conversion of pyruvic acid into ethyl alcohol is facilitated by enzyme(s)

Carboxylase

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Phosphatase

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Dehydrogenase

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Decarboxylase and dehydrogenase

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Solution

The correct option is D Decarboxylase and dehydrogenase
When the pyruvic acid converts into alcohol in the presence of enzymes by bacteria and also exhibited by some in the lack of oxygen.
$2 C H_{3} C O O H \to 2 C H_{3} C H O + 2 C O_{2}$ is takes place in the presence of decarboxylase which removes carbon dioxide
$2 C H_{3} C H O + 2 N A D H_{2} \to 2 C_{2} H_{5} O H + 2 N A D$ is takes place in the presence of alcohol dehydrogenase.
So the correct option is 'Decarboxylase and dehydrogenase'.

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