In which one of the following processes CO_2 | vedclass

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(D) The correct answer is $(d)$.Anaerobic respiration or fermentation is of two main types: lactate fermentation and alcoholic (ethanol) fermentation.

Vedclass · Accepted Answer

Lactate fermentation

Vedclass · Answer

(D) The correct answer is $(d)$.Anaerobic respiration or fermentation is of two main types: lactate fermentation and alcoholic (ethanol) fermentation.In lactate fermentation,pyruvic acid produced during glycolysis is directly reduced by $NADH$ to form lactic acid. This process does not involve the decarboxylation step,and therefore,no $CO_2$ is released.In contrast,alcoholic fermentation involves the conversion of pyruvate to acetaldehyde and then to ethanol,a process that releases $CO_2$.Aerobic respiration in both plants and animals involves the Krebs cycle and the electron transport system,which release $CO_2$ as a byproduct.

In which one of the following processes $CO_2$ is not released?

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