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Question

Most of the energy in the cell is liberated by oxidation of carbohydrate when

A
Pyruvic acid is converted into CO2 and H2O.
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B
Pyruvic acid is converted into acetyl CoA.
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C
Sugar is converted into pyruvic acid.
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D
Glucose is converted into alcohol and CO2.
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Solution

The correct option is A Pyruvic acid is converted into CO2 and H2O.
Most of the energy in the cell is liberated by oxidation of carbohydrate, when pyruvic acid is converted to CO2 and H2O. Pyruvate when enters Krebs cycle it generates a lot of energy in the form of NADH, FADH2 and GTP, also produces carbon dioxide and water as the by-product through several steps.

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