Question

Name the reproductive part of the plant.

Answer 1

Hint: The flower is a reproductive organ in angiosperms, and it is the most remarkable feature that makes it unique from the other seed plants.

Complete answer:
A plant consists of stamen as the male reproductive part that produces pollen grains in stamens, while pistil/gynoecium is the female reproductive organ that includes stigma, style, and ovary. Flowering plants are the dominant plant on land that reproduces by sexual and asexual means. In flowering plants, sexual reproduction involves the production of male and female gametes.
Male reproductive part: The male part of the plant is known as stamens that are made up of the anther at the top and the filament, which supports the anther. The anther is a bilobed structure that consists of four microsporangia in each lobe. This microsporangium further develops into a pollen sac that finally produces the pollen grains.
Female reproductive organ: The female reproductive part of the plant is the pistil, which is generally located in the center part of the flower. Pistil contains three parts: stigma, style, and ovary. The stigma is present at the top of the pistil like a sticky knob and attached to the long, tube-like structure called the style. The style finally leads the ovary that comprises the female egg cells called ovules.
At the time of fertilization, pollen grains attach to the stigma on the top of a carpel. After this pollen grows down the style and sperm from pollen grain enters into the ovule to fertilize the egg cell. The fertilized ovule converts into the seed, and the ovary becomes the fruit.

Note: Double fertilization is a characteristic feature of flowering plants in which out of two sperm cells, one sperm fuses with the egg cell while another sperm fuses with two polar nuclei that resulted in a formation of diploid zygote and triploid primary endosperm nucleus (PEN), respectively.