Multiple choice

Chlorophyll is a naturally occurring Chelate compound in which central metalion is

  1. calcium

  2. copper

  3. iron

  4. magnesium

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

Chlorophyll is a porphyrin-based molecule with magnesium (Mg) at its center, analogous to heme's iron core. The magnesium ion is essential for light absorption and electron transfer during photosynthesis. Calcium, copper, and iron are not the central metal in chlorophyll.