Pneumatophores help

Options

A. To get `CO_(2)` for photosynthesis
B. To get `O_(2)` for photosynthesis
C. To get `CO_(2)` for respiration
D. To get `O_(2)` for respiration

Answer

### Step-by-Step Solution:

1. **Understanding Pneumatophores**:
- Pneumatophores are specialized root structures that emerge above the soil or water surface. They are primarily found in plants that grow in waterlogged or marshy environments, such as mangroves.

2. **Function of Pneumatophores**:
- The main function of these roots is to facilitate gas exchange. In environments where the soil is saturated with water, the availability of oxygen is limited. Pneumatophores help the plant to obtain oxygen from the atmosphere.

3. **Gas Exchange**:
- Pneumatophores allow for the exchange of gases. They absorb oxygen from the air and help in the respiration process of the plant. This is crucial for the survival of the plant as it needs oxygen for cellular respiration.

4. **Photosynthesis vs. Respiration**:
- While plants do require carbon dioxide for photosynthesis, this gas is primarily taken in through stomata located on the leaves, not through the roots. Therefore, the role of pneumatohores is not related to photosynthesis directly.

5. **Conclusion**:
- Given the options provided, the correct answer is that pneumatohores help to get oxygen for respiration. This is essential for the plant's metabolic processes, especially when submerged in water where oxygen levels are low.

### Final Answer:
Pneumatophores help to get oxygen for respiration.