The landing platform for pollen grains in an angiospermic flower during affective pollination

Options

A. ovary
B. style
C. ovule
D. stigma

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Angiospermic Flower Structure**:
- An angiospermic flower consists of various parts, including the stalk, sepals, petals, and reproductive organs. The reproductive organs are divided into male and female components.

2. **Identifying Male and Female Reproductive Organs**:
- The male reproductive organ is called the stamen, which consists of the filament and the anther. The anther produces pollen grains.
- The female reproductive organ is called the pistil or carpel, which is made up of the stigma, style, and ovary. The ovary contains ovules.

3. **Role of Pollen Grains in Pollination**:
- Pollen grains are the male gametes that need to reach the female gametes (egg cells) for fertilization to occur.

4. **Landing Platform for Pollen Grains**:
- For effective pollination, pollen grains must land on a receptive surface. In the structure of the pistil, the stigma is the topmost part and is specifically designed to receive pollen grains.

5. **Conclusion**:
- The stigma serves as the landing platform for pollen grains during effective pollination, allowing them to travel down the style to reach the ovary and fertilize the ovules.

**Final Answer**: The landing platform for pollen grains in an angiospermic flower during effective pollination is the **stigma**.

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