EVERYDAY SCIENCE

Detailed explanation-1: -stamen, the male reproductive part of a flower. In all but a few extant angiosperms, the stamen consists of a long slender stalk, the filament, with a two-lobed anther at the tip. The anther consists of four saclike structures (microsporangia) that produce pollen for pollination.

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 haploid microspores produced in higher plants like gymnosperms and angiosperms. In higher plants the pollen grains produce male gametes by the process of mitosis. The study of pollen grains is called palynology. It is useful in forensics, evolutionary studies etc.

Detailed explanation-4: -Pollen grains are the male sex cell of a plant. They are present in the anther of a flower.

Detailed explanation-5: -A flower is a reproductive part of the plant as it contains stigma and anther. Anther contains the male sex cells (pollen grains) while stigma contains the female sex cells of the flower.