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Question
Evolution of CO2 is not seen in which one of the following processes?
Evolution of CO2 is not seen in which one of the following processes?
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Solution
The correct option is D Lactate fermentation
After glycolysis, which is common to all living organisms, pyruvic acid, which is the end product, can enter into different pathways of anaerobic respiration like lactic acid fermentation and alcoholic fermentation, or it can enter into the Krebs cycle which is a part of aerobic respiration seen in plants as well as in animals. It involves the process of decarboxylation or the release of CO2.
In alcoholic fermentation, pyruvic acid loses CO2 and subsequently results in the formation of ethanol. Hence, decarboxylation is observed in this type of anaerobic respiration.
Lactate/lactic acid fermentation is the process where lactate is formed from pyruvate. This does not involve any decarboxylation reaction. Hence, CO2does not evolve in this type of respiration.
After glycolysis, which is common to all living organisms, pyruvic acid, which is the end product, can enter into different pathways of anaerobic respiration like lactic acid fermentation and alcoholic fermentation, or it can enter into the Krebs cycle which is a part of aerobic respiration seen in plants as well as in animals. It involves the process of decarboxylation or the release of CO2.
In alcoholic fermentation, pyruvic acid loses CO2 and subsequently results in the formation of ethanol. Hence, decarboxylation is observed in this type of anaerobic respiration.
Lactate/lactic acid fermentation is the process where lactate is formed from pyruvate. This does not involve any decarboxylation reaction. Hence, CO2does not evolve in this type of respiration.