Assertion : Conversion of PEP into pyruvic acid is a substrate level phosphorylation reaction.
Reason: ATP is formed directly when ADP accepts the released phosphate from the substrate PEP.

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Both A and R are correct, (R) does not explains (A).

Both (A) and (R) are correct (R) explains (A).

A is true but R is false.

A is false but R is true.

answer is A.

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Detailed Solution

Both (A) and (R) are correct (R) explains (A).

Assertion is correct. Substrate-level phosphorylation is a type of ATP synthesis where a high-energy phosphate group is directly transferred from a phosphorylated substrate to ADP, forming ATP. Conversion of PEP into pyruvic acid is a substrate level phosphorylation reaction.

Reason is correct. The formation of pyruvate from PEP during glycolysis does release a phosphate group, which is used to directly synthesize ATP through substrate-level phosphorylation.

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