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Question

The end product of fermentation of sugars by Lactobacillus bacteria is

A
Lactic acid.
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B
CO2.
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C
Methyl alcohol and CO2.
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D
Butyl alcohol.
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Solution

The correct option is A Lactic acid.
The chemical breakdown of glucose in the absence of oxygen is called as fermentation. This process is also called anaerobic respiration. In this conversion, the intermediate produced is pyruvate followed by oxidation of NADH and formation of lactic acid. The bacterium Lactobacillus is used for the commercial production of lactic acid. Thus the correct answer is option A.
682507_159590_ans_af9acbd945544ff8aa8ca5d72cb436d9.PNG

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