Base of nucellus from which integument arises is

Options

A. hilum
B. funicle
C. chalaza
D. micropyle

Answer

To answer the question, "Base of nucellus from which integument arises is," we will analyze the options provided and identify the correct answer step by step.

### Step-by-Step Solution:

1. **Understanding Nucellus**:
- The nucellus is the central part of the ovule that contains the female gametes. It is surrounded by integuments, which are protective layers.

2. **Identifying the Options**:
- The options given are:
- A) Hilum
- B) Funicle
- C) Chalaza
- D) Micropyle

3. **Analyzing Each Option**:
- **Option A: Hilum**:
- The hilum is a scar on the seed that marks the point of attachment of the ovule. It is not the base of the nucellus from which the integument arises.
- **Option B: Funicle**:
- The funicle acts like an umbilical cord for the seed, attaching it to the pod. It does not refer to the base of the nucellus.
- **Option C: Chalaza**:
- The chalaza is located opposite to the micropyle and is the region where the integuments and the nucellus are joined. This is indeed the base of the nucellus from which the integument arises.
- **Option D: Micropyle**:
- The micropyle is a small opening in the integument of the ovule, allowing for the entry of pollen. It is not the base of the nucellus.

4. **Conclusion**:
- After analyzing all the options, the correct answer is **C) Chalaza**. The chalaza is the base of the nucellus from which the integument arises.

### Final Answer:
The base of nucellus from which integument arises is **Chalaza**.