Bulliform or motor cells are present in

Options

A. dicot stem
B. upper epidermis of dicot leaves
C. lower epidermis of monocot leaves
D. upper epidermis of monocot leaves

Answer

**Step-by-Step Solution:**

1. **Understanding Bulliform Cells**: Bulliform cells, also known as motor cells, are large, bubble-shaped epidermal cells.

2. **Location of Bulliform Cells**: These cells are primarily found on the upper surface of the leaves, specifically in monocotyledonous plants (monocots).

3. **Function of Bulliform Cells**: The primary function of bulliform cells is to help in the unfolding of developing leaves. They play a significant role in leaf movement and water regulation.

4. **Identifying the Correct Answer**: Given the options:
- Dicot Stem
- Upper Epidermis of the Dicot Leaves
- Lower Epidermis of the Monocot Leaves
- Upper Surface of the Monocot Leaves

The correct answer is the "Upper Surface of the Monocot Leaves," as this is where bulliform cells are located.

5. **Conclusion**: Therefore, the answer to the question is that bulliform or motor cells are present in the upper surface of the monocot leaves.

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