Question

Assertion :Magnesium is important in photosynthesis and carbohydrate metabolism Reason: Mg${}^{++}$ is involved in the synthesis of nucleic acids

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Assertion:

Magnesium is important in photosynthesis and carbohydrate metabolism.

Reason:

Mg++ is involved in the synthesis of nucleic acids.

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

Magnesium is a constituent of the chlorophyll molecule, without which photosynthesis would not occur.Many of the enzymes involved in carbohydrate metabolism require magnesium as an activator. Magnesium is also an activator for those enzymes involved in the synthesis of nucleic acids from nucleotide polyphosphate.