Multiple choice

Plants require the two metallic compounds for chlorophyll synthesis viz.

  1. Fe and Mg

  2. Cu and Ca

  3. Ca and K

  4. Mg and Ca

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Magnesium is the central metallic atom in the chlorophyll molecule, making it structurally essential. Iron is not part of the chlorophyll structure itself but is a critical cofactor for the enzymes that catalyze its biosynthesis.