Pectin is

Options

A. Waste product
B. Excretory product
C. Phytolectin
D. Secretory product.

Answer

**Step-by-Step Solution:**

1. **Understanding Pectin**: Pectin is a substance that is primarily found in the cell walls of plants. It plays a crucial role in the structural integrity of the plant cells.

2. **Identifying the Nature of Pectin**: Pectin is not a waste product or an excretory product. Instead, it is classified as a secretory product. This means that it is produced by the plant cells and secreted into the cell wall.

3. **Location of Pectin**: Pectin is predominantly found in the cell walls of plants and is especially concentrated in the skins of fruits. This is why it is often associated with the texture and firmness of fruits.

4. **Function of Pectin**: As a secretory product, pectin leaves the cytoplasm of the plant cells and gets deposited in the cell wall. This deposition helps in maintaining the structure and rigidity of the plant.

5. **Conclusion**: Based on the information gathered, we can conclude that pectin is a secretory product that is found in the cell walls of plants, particularly in the skins of fruits.

**Final Answer**: Pectin is a secretory product found in the cell walls of plants, especially in the skins of fruits.

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