Question

Which one of the following statements is correct regarding pollen?

• A. Tapetum nourishes the developing pollen
• B. Endothecium produces the microspores
• C. Sporogenous tissue is haploid
• D. Hard outer layer of pollen is called intine

Answer 1

The correct option is A

Tapetum nourishes the developing pollen

The correct option is A.

Explanation for correct option:

1. The male gametophyte is represented by pollen grains.
2. The pollen grain divides into two cells during mitosis: a vegetative cell and a generative cell.
3. The tapetum is the innermost layer of the wall.
4. Tapetum feeds pollen grains as they grow. The outer three wall layers serve as a defense and aid in the release of pollen in another dehiscence.

Explanation for incorrect options:

Option B:

Endothecium forms a protective wall around the microsporangium and aids in pollen release during another dehiscence.

Option C:

The sporogenous tissue is diploid. It goes through meiotic splitting to form microspore tetrads.

Option D:

The inner wall of the pollen grain is known as intine. While intine is the thin and continuous inner wall made of cellulose and pectin.

Final Answer: The correct statement about pollen is “Tapetum nourishes the developing pollen”.