Assertion: Magnesium is important in carbohydrate and protein metabolism. Reason: Mg2+ is involved in the synthesis of Nucleic acids.
Magnesium is a constituent of chlorophyll molecule, without which photosynthesis would not occur. Many of the enzymes involved in carbohydrate metabolism require Mg as an activator. Magnesium is also an activator for those enzymes involved in the synthesis of nucleic acids (DNA,RNA) from nucleotide phosphate.