Q27 / 200 · NEET 2003 · Botany

The major portion of the dry weight of plants comprises of:

  • A
    nitrogen, phosphorus and potassium
  • B
    calcium, magnesium and sulphur
  • C
    carbon, nitrogen and hydrogen
  • Correct answer
    D
    carbon, hydrogen and oxygen

Solution

The four most common elements in living organisms are $\mathrm{H}, \mathrm{C}, \mathrm{O}, \mathrm{N}$. These are also known as framework element. Carbon, hydrogen and oxygen together constitute about $94 \%$ of the total dry weight of the plant.

Hence, the correct answer is option: 'D'.

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