Question

Male part of a flower is called
A) Stamen
B) Stigma
C) Egg
D) Pollen tube

Answer 1

Hint: Flowering plants(that means angiosperms)reproduce by sexual reproduction method. This means male and female are involved in the reproduction in flowering plants just similar like in case of human beings. The sex organs of a plant are pesent in the flowers. The function of a flower is to make male and female gametes and to ensure that the fertilization will take place to make new seeds for the Reproduction of the plant.

Complete Answer:
- The male organ of a flower is called stamen which makes the male gametes or the male sex cells of the plant. These male gametes are present inside the pollen grains.
- The male gametes fertilize the female gametes are the egg cells present in ovules and the fertilized egg cells grow within the ovule and become seeds. The seeds then produce new plants on germination.

Let us now evaluate all the options:
A) Option A is stamen. As already mentioned, stamens produce the pollen grains and the pollen grains contain the male gametes and therefore this will be the male part of a flower.
B) Option B is stigma. The top part of the carpal or the female sex organ is Stigma. It is for receiving the pollen grains from the anther of the stamen during pollination.
C) Option C is egg. The female gamete of the plant which is present inside the ovule is called ovum or egg.
D) Option D is pollen tube. When a pollen grain falls on the stigma of the carpel, it bursts and opens and after that it grows a Pollen tube downwards through the style towards the female gamete in the ovary. A male gamete moves down the pollen tube and the pollen tube enters the ovule in the ovary to carry out the process of fertilization.

So, the correct answer will be option A.

Note: For the process of reproduction, fusion of male gamete and female gamete is required. Before that, the first step is the release of pollen grains from the anther of the stamen and to be carried away to the stigma of carpel. This transfer of pollen grains from the anther of a stamen to the stigma of a carpel is known as pollination.