Lenticels do not occur on

Options

A. Pericycle
B. root
C. leaf
D. fruit

Answer

**Step-by-Step Solution:**

1. **Understanding Lenticels**: Lenticels are specialized structures found in the bark of woody plants and in the periderm of secondary thickened organs. They consist of porous tissues that have large intracellular spaces, allowing for gas exchange.

2. **Function of Lenticels**: The primary function of lenticels is to facilitate the exchange of gases (like oxygen and carbon dioxide) between the internal tissues of the plant and the external atmosphere. This is crucial for the plant's respiration.

3. **Identifying Locations of Lenticels**: Lenticels are commonly found in:
- The bark of woody stems.
- The roots of dicotyledonous plants.
- Fruits, where they help in gas exchange.

4. **Analyzing the Options**:
- **Pericycle**: Lenticels can be found in the pericycle of roots.
- **Root**: Lenticels are present in the roots of dicots.
- **Fruit**: Lenticels can also be found in some fruits.
- **Leaf**: Lenticels are not typically found on leaves.

5. **Conclusion**: Since lenticels are not present in leaves, the correct answer to the question "Lenticels do not occur on" is **leaf**.

**Final Answer**: Lenticels do not occur on **leaf**.

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