NEET BIOLOGY

Detailed explanation-1: -Pollen is a powdery substance produced by seed plants. It consists of pollen grains (highly reduced microgametophytes), which produce male gametes (sperm cells).

Detailed explanation-2: -Pollen is essential for sexual reproduction of flowering plants and plants that produce cones. Each pollen grain contains male gametes necessary for fertilisation. The scientific study of living and fossilised pollen grains is known as palynology. The male part of flowering plants is the stamen.

Detailed explanation-3: -Pollen grains are the male sex cell of a plant. They are present in the anther of a flower.

Detailed explanation-4: -Another name for pollen grain is microspore. Pollen grains are found in flowering plants, in the male structures.

Detailed explanation-5: -What are Pollen Grains? Pollen grains are microscopic structures, which bear androecium – a male reproductive organ of a flower. The interior section of pollen grain contains cytoplasm along with the tube cell, which converts into a pollen tube and the generative cell releases the sperm nuclei.