Name the substance of which cuticle of leaf is made up of ?

Answer

### Step-by-Step Solution:

1. **Understanding the Cuticle**: The cuticle is a protective layer found on the surface of leaves in higher plants. It serves as a barrier to prevent water loss.

2. **Composition of the Cuticle**: The cuticle is primarily composed of a specific substance that provides its protective and water-repellent properties.

3. **Identifying the Substance**: The substance that makes up the cuticle is called "cutin."

4. **Characteristics of Cutin**: Cutin is a waxy, water-repellent substance that helps in limiting water loss from the plant's surface.

5. **Conclusion**: Therefore, the cuticle of the leaf is made up of cutin.

### Final Answer:
The cuticle of the leaf is made up of **cutin**.

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