Question

give the function of pollen tube, ovary, stigma during germination

Answer 1

The pollen tube is the tube through which sperm from the pollen reaches the egg cell, and fertilises the plant to form seeds. The pollen tube of most seed plants acts as a passageway. It transports sperm cells from the pollen grain, from the stigma (in flowering plants) to the ovules at the base of the pistil.