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

Enzyme enolase catalyses the conversion of 2 PGA to Phosphoenol Pyruvic acid in presence of ____ which is the cofactor.

A \(Mn ^{-}\)
B \(Fe ^{-}\)
C \(Mg ^{-}\)
D \(Zn ^{-}\)

Verified Solution

Answer & Solution

Correct Answer

(C) \(Mg ^{-}\)

Step-by-step Solution

Detailed explanation

Magnesium ion is a common activator of respiratory enzymes.

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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Column I	Column II
1. Ligase	a. Peptide bond formation
2. Ribozyme	b. Hydrolysis of lactose
3. Permease	c. Joining of okazaki fragments
4. \(\beta\) - galactosidase	d. Increases permeability