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 BC2H5OH 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.