In which one of the following processes \(CO_2\) is not released?

A Aerobic respiration in plants
B Aerobic respiration in animals
C Alcoholic fermentation
D Lactate fermentation

Verified Solution

Answer & Solution

Correct Answer

(D) Lactate fermentation

Step-by-step Solution

Detailed explanation

(d) : Anaerobic respiration or fermentation can be of two types, \(i.e.\), lactate fermentation and ethanol fermentation. Lactate fermentation produces lactic acid only as pyruvic acid produced in glycolysis is directly reduced by \(NADH\) to form lactic acid and no \(CO_2\) is produced. Alcoholic (ethanol) fermentationinvolves conversion of pyruvate to acetaldehyde,hence, \(CO_2\) is released.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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