Biology
Grade-10
Easy

Question

All the following elements are present in chlorophyll except

  1. Potassium
  2. Nitrogen
  3. Carbon
  4. Magnesium

hintHint:

Potassium

The correct answer is: Potassium


    chlorophyll molecule consists of a central magnesium atom surrounded by a nitrogen-containing structure known as porphyrin ring; attached to the ring is a long carbon-hydrogen side chain, known as a phytol chain.
    But no potassium is present.

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