Question

Micronutrients$/$ trace elements are those that.

• A. Can be removed from the plant without any effect on it
• B. Play a minor role in plant nutrition
• C. Form very small molecules in plants
• D. Are present$/$ required in small quantities in plants

Answer 1

The correct option is D Are present$/$ required in small quantities in plants

Micronutrients are those mineral elements which are required by plants in trace or small quantities ( less than 0.1 mg/mg of dry matter).

They are generally required in the functioning of enzymes, as cofactors or metal activators.

These elements become toxic if increase in concentration.

Examples are Fe, B, Cu, Co, Zn, Mn, Mo etc.

So, the correct answer is option D.