Multiple choice

For chlorophyll formation, which two elements are needed?

  1. Iron and calcium

  2. Calcium and magnesium

  3. Nitrogen and magnesium

  4. Sodium and chloride

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

Magnesium is the central atom of the chlorophyll molecule, while nitrogen is a key component of the porphyrin ring structure. Both are essential for the synthesis of chlorophyll.