Day time loss of water in the vapour form from stomata is a trada off for intake of

Options

A. Minerals
B. Oxygen
C. Carbon dioxide
D. Energy

Answer

**Step-by-Step Solution:**

1. **Understanding Stomata Function**: Stomata are small openings on the surfaces of leaves that allow for gas exchange. They play a crucial role in photosynthesis by enabling the intake of carbon dioxide (CO2) and the release of oxygen (O2).

2. **Photosynthesis and Water Loss**: During the daytime, when photosynthesis occurs, stomata open to allow CO2 to enter the leaf. However, this opening also leads to the loss of water vapor through a process called transpiration.

3. **Guard Cells and Turgidity**: The opening and closing of stomata are regulated by guard cells. When guard cells are turgid (swollen with water), the stomata open, allowing gas exchange. Conversely, when guard cells lose water and become flaccid, the stomata close, reducing water loss but also limiting CO2 intake.

4. **Trade-off Analysis**: The question highlights the trade-off between water loss and gas exchange. While the opening of stomata facilitates the intake of CO2 necessary for photosynthesis, it also results in the loss of water vapor.

5. **Identifying the Correct Answer**: The question asks what the daytime loss of water in vapor form is a trade-off for. Given that the primary gas taken in during the day for photosynthesis is CO2, the correct answer is carbon dioxide.

6. **Final Answer**: Therefore, the answer to the question is option C: Carbon dioxide.

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