Chalaza is

Options

A. Ridge formed by fusion of funicle with the body of ovule
B. Space between integument and nucellus
C. Place of origin of integuments
D. Place where nucellus communicates with cavity of ovary.

Answer

To answer the question "Chalaza is," we will analyze the information provided in the video transcript step by step.

### Step-by-Step Solution:

1. **Understanding the Structure of the Ovule**:
- The ovule is a crucial part of the plant reproductive system. It consists of several components, including the funicle, integuments, and nucellus.

2. **Identifying the Funicle**:
- The funicle is the stalk that attaches the ovule to the placenta in the ovary. It plays a role in nutrient transfer.

3. **Defining Chalaza**:
- The chalaza is specifically located at the opposite end of the micropyle in the ovule. It is the region where the nucellus connects with the integuments.

4. **Differentiating Between Related Terms**:
- The video mentions several terms related to the ovule:
- **Raphe**: The ridge formed by the fusion of the funicle with the body of the ovule.
- **Endostome**: The space between the integuments and the nucellus.
- **Micropilar End**: The end where the integuments originate.

5. **Conclusion**:
- Based on the definitions and locations of the various parts of the ovule, the chalaza is defined as the region where the nucellus communicates with the cavity of the ovary. It is also considered the site where the integuments originate.

### Final Answer:
Chalaza is the part of the ovule where the nucellus communicates with the cavity of the ovary.

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