Pollen sac corresponds to which part

Options

A. microsporangium
B. gametophyte
C. megasporangium
D. microspore

Answer

To answer the question "Pollen sac corresponds to which part?", we need to analyze the options provided and understand the relevant biological concepts.

### Step-by-Step Solution:

1. **Understanding Pollen Sac**:
- The pollen sac is a structure found in flowering plants (angiosperms) that is responsible for producing pollen grains.

2. **Identifying the Options**:
- The options given are:
- A) Microsporangium
- B) Gametophyte
- C) Megasporangium
- D) Microspore

3. **Analyzing Each Option**:
- **Microsporangium**: This is the correct answer. The pollen sac is indeed a microsporangium, where microspores are produced through meiotic division. These microspores eventually develop into pollen grains.
- **Gametophyte**: This is the haploid phase in the plant life cycle that produces gametes. It is not directly equivalent to the pollen sac.
- **Megasporangium**: This refers to the structure that produces megaspores, typically associated with ovules. It is not related to pollen sacs.
- **Microspore**: This is the product of meiotic division within the microsporangium, but it is not the structure itself.

4. **Conclusion**:
- Based on the analysis, the pollen sac corresponds to the **microsporangium**.

### Final Answer:
The pollen sac corresponds to the **microsporangium**.

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