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Pollen grain germinates through...

Pollen grain germinates through

A

Micropyle

B

Integument

C

Chalaza

D

Germ pore.

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Pollen Grain Germination**: Pollen grains are the male gametophytes in seed plants and they need to germinate to form a pollen tube that will deliver sperm cells to the ovule for fertilization. 2. **Analyzing the Options**: - **Micro-pyle**: This is an opening in the ovule that allows the entry of the pollen tube during fertilization, but it is not involved in the germination of the pollen grain itself. - **Integuments**: These are protective layers surrounding the ovule. They do not play a role in the germination of pollen grains. - **Glyza**: This refers to the region of the ovule opposite to the micro-pyle and is not related to pollen germination. - **Germ Pores**: These are specific areas on the pollen grain where the outer layer, called sporopollenin, is absent. This allows for the emergence of the pollen tube during germination. 3. **Identifying the Correct Answer**: Among the options provided, the germ pores are the only structures that facilitate the germination of pollen grains, as they are the sites through which the pollen tube emerges. 4. **Conclusion**: Therefore, the correct answer to the question "Pollen grain germinates through" is **Germ Pores**. ---
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