In the absence of oxygen, glucose is broken down in to ______________.
[Review question: Pg. No: 215]
A
acetic acid
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B
citric acid
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C
lactic acid
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D
nitric acid
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Solution
The correct option is C lactic acid Anaerobic respiration:
In this type of respiration, partial oxidation of food takes place and the organisms release energy in the absence of oxygen. This type of respiration occurs in organisms like yeast. Ethyl alcohol or lactic acid and carbon dioxide are the by-products of this process. This reaction releases very little energy because glucose is not completely oxidized.