AP BIOLOGY

Detailed explanation-1: -The pollen grain is the male gametophyte generation produced from microspores in the anthers of flowering plants, and consists of a vegetative cell and a generative cell.

Detailed explanation-2: -Pollen is flower sperm, and climate change is making more of it every season. Not a great situation for allergy sufferers. Grains of pollen actually produce the male gametes (sperm cells) of flowering plants.

Detailed explanation-3: -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-4: -The two sperm cells arise from the generative pollen cell either within the pollen grain or after germination inside the pollen tube.

Detailed explanation-5: -Pollen is technically a male gametophyte, meaning an organism that makes “gametes”, which in this case is sperm. In its simplest form, pollen has three cells: one vegetative cell enclosing two sperm cells. So we’re all covered in plant sperm.