Trichomes take part in

Options

A. Transpiiration and exchange of gases
B. Proteciton and reduction of transpiration
C. Exudation of water drops
D. Desiccation

Answer

**Step-by-Step Solution:**

1. **Understanding Trichomes**:
- Trichomes are hair-like structures found on the surface of leaves and stems of plants. They can be unicellular or multicellular and serve various functions.

2. **Identifying Functions of Trichomes**:
- Trichomes can play multiple roles in plants, including:
- Reducing water loss (transpiration)
- Providing protection against herbivores and environmental stress
- In some cases, aiding in the excretion of excess water

3. **Analyzing the Options**:
- **Option 1**: Transpiration and extremes of cases - While trichomes can influence transpiration, they do not directly facilitate gas exchange like stomata do.
- **Option 2**: Protection and reduction of transpiration - This option highlights two primary functions of trichomes: they protect the plant and help reduce water loss.
- **Option 3**: Excretion of water drops - This function is primarily performed by hydrothodes, not trichomes.
- **Option 4**: Desiccation - This term refers to the drying out of tissues, which is not a function of trichomes.

4. **Selecting the Correct Answer**:
- Based on the analysis, the correct answer is **Option 2: Protection and reduction of transpiration**. Trichomes help in minimizing water loss and provide a protective barrier for the plant.

5. **Conclusion**:
- Trichomes serve important roles in plant anatomy, particularly in protecting the plant and reducing water loss through transpiration.

---