AP BIOLOGY

Detailed explanation-1: -Through the process of meiosis, pollen is formed in the pollen sacs (microsporangia ) inside the anthers of a flower. The anther, while it is developing from anther primordium (undifferentiated cells), forms two clusters of cells.

Detailed explanation-2: -Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther.

Detailed explanation-3: -The male part of flowering plants is the stamen. This consists of an anther supported by a single stalk, the filament. The anther usually contains four pollen sacs which are responsible for producing pollen grains.

Detailed explanation-4: -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.

Detailed explanation-5: -The anther consists of four saclike structures (microsporangia) that produce pollen for pollination.