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Question
Assertion: In alcoholic fermentation, acetaldehyde is the electron acceptor.
Reason: Pyruvic acid is the end product of glycolysis.
Assertion: In alcoholic fermentation, acetaldehyde is the electron acceptor.
Reason: Pyruvic acid is the end product of glycolysis.
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Solution
The correct option is A Both assertion and reason are true, but the reason is not the correct explanation.
Ethanol fermentation, also called alcoholic fermentation, is a biological process which converts sugars such as glucose, into cellular energy, producing ethanol and carbon dioxide as byproducts.
This process occurs in two stages:
a. First, the glucose is converted into pyruvate with the generation of ATP and NADH.
b. Next, the obtained pyruvate is converted into ethanol and carbon dioxide, with the consumption of NADH generated during glycolysis.
In glycolysis, triose phosphate, glyceraldehyde 3- phosphate acts as an electron donor during the conversion of glucose to pyruvate.
In the next stage, 2-acetaldehyde, formed from decarboxylation of pyruvate, accepts electrons from NADH and is reduced to ethanol.
Ethanol fermentation, also called alcoholic fermentation, is a biological process which converts sugars such as glucose, into cellular energy, producing ethanol and carbon dioxide as byproducts.
This process occurs in two stages:
a. First, the glucose is converted into pyruvate with the generation of ATP and NADH.
b. Next, the obtained pyruvate is converted into ethanol and carbon dioxide, with the consumption of NADH generated during glycolysis.
In glycolysis, triose phosphate, glyceraldehyde 3- phosphate acts as an electron donor during the conversion of glucose to pyruvate.
In the next stage, 2-acetaldehyde, formed from decarboxylation of pyruvate, accepts electrons from NADH and is reduced to ethanol.
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