The vascular bundles are surrounded by a layer of thick walled_______cells in dorsiventral leaf:-

Options

A. Mesophyll
B. Epidermal
C. Bundle sheath
D. All

Answer

To answer the question, "The vascular bundles are surrounded by a layer of thick-walled ______ cells in dorsiventral leaf," we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Leaves**:
- Dorsiventral leaves have two distinct surfaces: the upper (adaxial) surface and the lower (abaxial) surface. This structure is common in many plants.

2. **Identify Vascular Bundles**:
- Vascular bundles consist of xylem and phloem, which are responsible for the transport of water, nutrients, and food in plants.

3. **Know the Surrounding Cells**:
- Vascular bundles in dorsiventral leaves are surrounded by a layer of cells that provide support and protection.

4. **Recognize the Correct Term**:
- The thick-walled cells surrounding the vascular bundles are known as "bundle sheath" cells. These cells are important for the functioning of the vascular system in the leaf.

5. **Select the Correct Option**:
- Based on the understanding that the thick-walled cells surrounding the vascular bundles are called "bundle sheath" cells, we can conclude that the correct answer to the question is "bundle sheath."

### Final Answer:
The vascular bundles are surrounded by a layer of thick-walled **bundle sheath** cells in dorsiventral leaves.

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