Isodiametric sclereids, found in hard endocarp of coconut and fleshy portion of some fruits are

Options

A. Brachysclereids
B. Asterosclereids
C. Osteosclereids
D. Trichosclereids

Answer

To solve the question regarding isodiametric sclereids found in the hard endocarp of coconut and the fleshy portion of some fruits, we will analyze the options provided and understand the characteristics of different types of sclereids.

### Step-by-Step Solution:

1. **Understanding Sclereids**:
- Sclereids are a type of sclerenchyma cells that are typically non-living and have thick, lignified cell walls. They provide structural support and protection to the plant.

2. **Identifying Isodiametric Sclereids**:
- The term "isodiametric" refers to cells that have approximately equal dimensions in all directions. This characteristic is important for identifying the specific type of sclereids in question.

3. **Analyzing the Options**:
- **Brachysclereids**: These are isodiametric sclereids that resemble parenchyma cells and are commonly found in the hard endocarp of fruits like coconut and in the flesh of some fruits. They are also known as "stone cells."
- **Eryngiosclereids**: These are elongated and branched, not isodiametric.
- **Osteosclereids**: These have a more elongated shape and are not isodiametric.
- **Trichosclereids**: These are hair-like and also do not fit the isodiametric description.

4. **Conclusion**:
- Based on the characteristics and definitions, the correct answer to the question is that isodiametric sclereids found in the hard endocarp of coconut and fleshy portions of some fruits are **Brachysclereids**.

### Final Answer:
Isodiametric sclereids found in the hard endocarp of coconut and fleshy portion of some fruits are **Brachysclereids**.

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