Multiple choice

Which plant mineral is needed to make chlorophyll?

  1. Phosphates

  2. Nitrates

  3. Potassium

  4. Magnesium

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

Magnesium is an essential plant nutrient because it forms the central atom of the chlorophyll molecule, which is responsible for absorbing light energy. Without sufficient magnesium, plants cannot synthesize chlorophyll and develop yellow leaves, a condition known as chlorosis.