Question

Pollen grains get their nourishment from which part of anther?

Hint:

Remember: Tapetum = nutritive tissue of anther → supplies food + sporopollenin for pollen wall.

Answer 1

Answer: Pollen grains get their nourishment from the tapetum, the innermost layer of the anther wall. Explanation: - The anther wall consists of four layers: epidermis, endothecium, middle layers, and tapetum. - The tapetum is a nutritive tissue rich in cytoplasm and organelles. - It provides enzymes, hormones, amino acids, and other nutrients required for the development and maturation of pollen grains. - Tapetal cells also produce sporopollenin, a complex substance that forms the tough outer wall (exine) of pollen grains, making them resistant to environmental stress. Conclusion: Thus, the tapetum plays a crucial role in nourishing developing pollen grains and ensuring successful male gametophyte formation.