MHT CET · BIOLOGY · STD 11 - 13. Respiration and Energy Transfer

How many glucose molecules are are required for the formation of 52 pyruvic acid molecules at the end of glycolysis?

A 52
B 46
C 32
D 26

Verified Solution

Answer & Solution

Correct Answer

(D) 26

Step-by-step Solution

Detailed explanation

During glycolysis, each molecule of glucose is converted into 2 molecules of pyruvic acid. Therefore, the number of glucose molecules required for the formation of 52 pyruvic acid molecules would be: 52 pyruvic acid molecules ÷ 2 pyruvic acid molecules per glucose = 26 glucose molecules So the answer is (D) 26 glucose molecules.

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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