Which one of the following is not a part of microsporangium ?

Options

A. Endothecium
B. Tapetum
C. Funicle
D. Sporogenous tissue

Answer

To determine which option is not a part of the microsporangium, let's analyze the components of the microsporangium step by step.

### Step-by-Step Solution:

1. **Understanding Microsporangium**:
- The microsporangium is the male reproductive structure in plants where pollen grains are produced. It is crucial for the process of reproduction in flowering plants.

2. **Identifying Components**:
- The components of the microsporangium include:
- **Endothecium**: This is one of the layers of the microsporangium that helps in the dehiscence of the anther.
- **Tapetum**: This is the innermost layer of the microsporangium that nourishes the developing pollen grains and plays a role in the formation of the pollen wall.
- **Sporogenous Tissue**: This tissue is responsible for producing the microspores, which develop into pollen grains.

3. **Analyzing the Options**:
- **Endothecium**: Part of the microsporangium.
- **Tapetum**: Part of the microsporangium.
- **Sporogenous Tissue**: Part of the microsporangium.
- **Funiculus**: This is a structure associated with the ovule, connecting it to the placenta in the ovary. It is not part of the microsporangium.

4. **Conclusion**:
- Based on the analysis, the **Funiculus** is the component that is not part of the microsporangium.

### Final Answer:
The component that is not a part of the microsporangium is **Funiculus**.

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