Q28 / 160 · JIPMER 2006 · Botany

Micro-nutrients are :

  • A
    less important in nutrition than macronutrients
  • Correct answer
    B
    as important in nutrition as macro-nutrients
  • C
    may be omitted from culture media without any detrimental effect on the plant
  • D
    called micro because they play only minor role in nutrition

Solution

Micro-nutrients are the minerals/elements which are required in less amount by the plants and thus are present in less quantity in the plants but these are as important as the macro-nutrients. Examples of micro-nutrients iron ( Fe ), manganese ( Mn ), copper $(\mathrm{Cu})$, zinc $(\mathrm{Zn})$, molybdenum (Mo), boron (B) and chlorine (Cl).

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

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