Question

I. Component of chlorophyll

II. Helps to maintain ribosome structure

III. Activator for Rubisco and Pepco

IV. Activates the enzymes of respiration and photosynthesis

V. Involved in synthesis of nucleic acids

The above roles are played by –

• A. Ca⁺²
• B. Mg⁺²
• C. Mn⁺²
• D. CI^–

Answer 1

Answer: (A)

Ca⁺²