Question

Draw a neat diagram to show germination of pollen on the female reproductive part of the flower. Name and label only the following parts:
(a) The part that receives the pollen grain.
(b) The structure that carries the male germ cell to reach the female germ cell.

Hint:

In pollen germination: Stigma receives pollen; pollen tube carries male gametes through style to ovule. Remember: Stigma $\rightarrow$ Style $\rightarrow$ Ovary (contains ovule with egg cell).

Answer 1

Germination of Pollen on the Female Reproductive Part of a Flower:

When a pollen grain falls on the stigma of a flower, it germinates and forms a pollen tube. The pollen tube grows through the style and carries the male germ cells to the ovule where fertilization takes place.

Neat Labeled Diagram:

                _________
               /         \
              /   (a)      \
             |   STIGMA      |
              \_____________/
                    |
                    |
                    |
                    |   ← (b) Pollen Tube
                    |
                    |
                 __________
                |          |
                |  Ovary   |
                |__________|

  

Labels:

(a) Stigma – The part that receives the pollen grain.
(b) Pollen Tube – The structure that carries the male germ cell to reach the female germ cell.

Explanation:

After pollination, the pollen grain lands on the stigma. The stigma provides a suitable surface for pollen germination. A pollen tube develops from the pollen grain and grows down through the style toward the ovary. The male germ cells travel through the pollen tube to reach the ovule for fertilization.

Conclusion:
The stigma receives the pollen grain, and the pollen tube transports the male germ cell to the female germ cell for successful fertilization.