Rate of transpiration is high in

Options

A. `C_(3)` plants
B. `C_(4)` plants
C. CAM plants
D. Both `C_(3) and C_(4)`plants

Answer

**Step-by-Step Solution:**

1. **Understanding Transpiration**: Transpiration is the process by which water vapor is lost from plant leaves to the atmosphere. It plays a crucial role in nutrient uptake and temperature regulation in plants.

2. **Types of Plants**: The question mentions three types of plants: CAM plants, C4 plants, and C3 plants. Each of these has different adaptations to their environments, particularly concerning water loss.

3. **CAM Plants**: CAM (Crassulacean Acid Metabolism) plants are adapted to arid conditions. They open their stomata at night to minimize water loss during the hot daytime. This adaptation reduces transpiration rates, making them less likely to have a high rate of transpiration.

4. **C4 Plants**: C4 plants also have adaptations to reduce water loss. They possess a special leaf anatomy known as Kranz anatomy, which helps them efficiently use carbon dioxide and minimize transpiration. While they are efficient in photosynthesis, they are still adapted to conserve water.

5. **C3 Plants**: C3 plants do not have the same level of adaptations as CAM and C4 plants to reduce transpiration. They typically have their stomata open during the day and do not have specialized structures to minimize water loss. Therefore, they tend to have a higher rate of transpiration compared to CAM and C4 plants.

6. **Conclusion**: Among the three types of plants, C3 plants exhibit the highest rate of transpiration because they lack the adaptations that CAM and C4 plants have developed to conserve water.

**Final Answer**: The rate of transpiration is high in C3 plants.

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