Bulliform cells are found in

Options

A. Grasses Adaxial epidermal cells of dorsiventral leaves
B. Grasses - Abaxial epidermal cells of dorsiventral leaves
C. Grasses - Adaxial epidermal cells of isobilateral leaves
D. Grasses - Abaxial epidermal cells of isobilateral leaves

Answer

To answer the question "Bulliform cells are found in," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Bulliform Cells**:
- Bulliform cells are specialized cells that are typically found in the epidermis of certain plants. They are known for their ability to change shape based on water availability.

2. **Identifying the Location**:
- These cells are primarily located in the leaves of grasses. They are present in the upper epidermis, specifically in the adaxial (upper) surface of the leaf.

3. **Leaf Structure**:
- The leaves of grasses are classified as isobilateral leaves, meaning that both the upper and lower surfaces of the leaf appear similar in color and structure. This is different from dicot leaves, which are dorsiventral (having distinct upper and lower surfaces).

4. **Function of Bulliform Cells**:
- Bulliform cells play a crucial role in water regulation. When the plant has sufficient water, these cells swell, causing the leaf to expand. Conversely, during water stress, these cells lose water and become flaccid, leading to the curling of the leaf to minimize water loss.

5. **Conclusion**:
- Based on the above points, we can conclude that bulliform cells are found in the leaves of grasses, specifically in the adaxial epidermis of isobilateral leaves.

### Final Answer:
Bulliform cells are found in the leaves of grasses (option 3).

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