The filiform apparatus is present in

Options

A. (a) synergids
B. (b) egg
C. (c) anther wall
D. (d) antipodal cells

Answer

**Step-by-Step Solution:**

1. **Understanding the Filiform Apparatus**: The filiform apparatus consists of finger-like projections that are found in certain cells of the embryo sac. These projections are specifically located in the synergid cells.

2. **Location of the Filiform Apparatus**: The filiform apparatus is present at the micropilar end of the embryo sac. This is the end where the pollen tube enters during fertilization.

3. **Function of the Filiform Apparatus**:
- The filiform apparatus plays a crucial role in guiding the pollen tube towards the embryo sac, facilitating the process of fertilization.
- It also assists in the absorption of nutrients from the surrounding tissues into the embryo sac, providing necessary sustenance for the developing embryo.

4. **Identifying the Correct Answer**:
- The question asks where the filiform apparatus is found. Given the options provided:
- **A. Synergids**: Correct, as the filiform apparatus is located in the synergid cells.
- **B. Egg**: Incorrect, as the egg cell does not contain a filiform apparatus.
- **C. Antipodal cells**: Incorrect, as these cells are located at the chalazal end and do not have a filiform apparatus.
- **D. Anthropos**: Incorrect, as this term does not relate to the structure of the embryo sac.

5. **Conclusion**: Therefore, the filiform apparatus is present in the synergid cells of the embryo sac.

**Final Answer**: The filiform apparatus is present in **synergids**.

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