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Question

Which of the following is the product of glucose fermentation by yeast?

A
C6H12O6
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B
C2H5OH
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C
(C6H10O5)n
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D
CH2OH
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Solution

The correct option is B C2H5OH
Zymase is an enzyme complex that catalyzes the fermentation of sugar into ethanol and carbon dioxide. It occurs naturally in yeasts. Zymase activity varies among yeast strains.
Fermentation is a form of anaerobic respiration in which carbohydrates are incompletely oxidised to either ethanol (C2H5OH) and carbon dioxide as in yeast or lactic acid, as in the muscles of higher vertebrates.

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