cells of Grass leaves which help in minimising cuticular transpiration are

Options

A. Bulliform cells
B. Guard cells
C. Secondary meristem
D. Endodermal cells

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the specific cells in grass leaves that help minimize cuticular transpiration. Cuticular transpiration refers to the loss of water vapor from the plant surface, particularly through the cuticle.

2. **Identifying the Options**: The options provided are:
- A) Bulliform cells
- B) Guard cells
- C) Secondary meristem
- D) Endodermal cells

3. **Analyzing Each Option**:
- **A) Bulliform cells**: These are large, colorless cells found in the upper epidermis of grass leaves. They play a crucial role in water conservation by causing the leaf to roll up during dry conditions, thus reducing water loss.
- **B) Guard cells**: These cells surround the stomata and regulate gas exchange and transpiration but are not specifically responsible for minimizing cuticular transpiration.
- **C) Secondary meristem**: This refers to a type of tissue involved in growth and does not play a role in transpiration.
- **D) Endodermal cells**: These cells are part of the root structure and help in regulating water and nutrient uptake, not in minimizing cuticular transpiration in leaves.

4. **Conclusion**: Based on the analysis, bulliform cells are specifically adapted to minimize cuticular transpiration by rolling the leaf lamina in dry conditions, thus reducing the surface area exposed to the atmosphere.

5. **Final Answer**: The cells of grass leaves that help in minimizing cuticular transpiration are **A) Bulliform cells**.

---