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ExamsNEETBiology

Deficiency of magnesium produces chlorosis due to breakdown of chlorophyll. Chlorosis is a condition in which plant leaf produces insufficient chlorophyll. When this happens, leaves do not have their normal green colour; they fade to a pale green, yellow, or yellow-white.

  1. Iron
  2. Magnesium
  3. Nitrogen
  4. Calcium

Correct answer: Magnesium

Solution

Magnesium is the central atom in chlorophyll, so a deficiency prevents normal chlorophyll synthesis and leads to chlorosis. Without enough chlorophyll, leaves lose their green color and turn pale or yellow.

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