Question

Which of the given statements are not true regarding the structure of the pollen grain?
(i) Outer exine is made up of sporopollenin.
(ii) Inner intine is pecto-cellulosic in nature.
(iii) Generative cell is bigger and contains abundant food reserve.
(iv) Vegetative cell is small and floats in the cytoplasm of the generative cell.

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (iii) and (iv)
• D. (i) and (iv)

Answer 1

The correct option is C (iii) and (iv)

In a mature pollen grain, the generative cell is smaller and the vegetative cell is larger. The generative cell lies freely in the cytoplasm of the vegetative cell. The vegetative cell has a cytoplasm which is rich in the food reserve (starch, protein, fat with mostly unsaturated fatty acids).