Flesh of guava, apple pear and spota fruits is gritty and full of

Options

A. sclerenchyma fibres
B. sclerenchyma sclereids
C. collenchyma and lignin
D. (1) and (2) both

Answer

**Step-by-Step Solution:**

1. **Identify the Fruits in Question**: The question refers to the flesh of guava, apple, pear, and spot fruits. These fruits are known for their gritty texture.

2. **Understand the Texture**: The gritty texture of these fruits is primarily due to the presence of specific types of cells in their flesh.

3. **Identify the Types of Cells**: The cells responsible for the gritty texture are sclerenchyma fibers and sclerids (also known as sclerites). Both of these cell types are part of the sclerenchyma tissue.

4. **Differentiate Between Fibers and Sclerids**:
- **Fibers**: These are elongated cells that provide structural support. They have thick secondary walls that are lignified (contain lignin).
- **Sclerids**: These are shorter, broader cells that also have thick lignified walls. They can take various shapes and contribute to the gritty texture.

5. **Explain the Role of Lignin**: Lignin is a complex organic polymer that strengthens the cell walls of sclerenchyma cells, making them rigid and durable. This contributes to the overall texture of the fruit flesh.

6. **Conclusion**: The gritty texture of the flesh in guava, apple, pear, and spot fruits is due to the presence of sclerenchyma fibers and sclerids, which are characterized by their thick, lignified walls.

**Final Answer**: The flesh of guava, apple, pear, and spot fruits is gritty and full of sclerenchyma fibers and sclerids.

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