Question

Phosphorous is a macronutrient required for closing and opening of stomata.

• A. True
• B. False

Answer 1

The correct option is A True

Plant nutrients:

1. Plants require a number of nutrients for their healthy growth and development.
2. These nutrients are directly absorbed by their roots and are essential for their normal growth and reproduction.
3. Plant nutrients can be classified as;
   • Macronutrients- It is required in large quantities by the plants like 1mg —10 mg per 1 gram weight of the plant.
     • Examples- nitrogen, phosphorus, potassium
     • Potassium is involved in the opening and closing of stomata.
     • It activates many enzymes.
   • Micronutrients- It is required in very small quantities by the plants like 0.1 mg per 1 gram weight of the plant.
     • Examples- Iron, manganese and zinc

Final answer: The given statement is true.