Of the total amount of water absobed by the plants, its actual percentage used during photosynthesis is

Options

A. `50%`
B. `90%`
C. `1%`
D. `25%`

Answer

To solve the question regarding the percentage of water absorbed by plants that is used during photosynthesis, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Water's Role in Photosynthesis**:
- Water is essential for photosynthesis as it provides protons (H+) and electrons necessary for the formation of glucose and oxygen during the process.

2. **Identifying Water Loss**:
- A significant portion of the water absorbed by plants is not used for photosynthesis. Instead, it is lost through processes like transpiration (the evaporation of water from plant surfaces) and guttation (the exudation of water droplets from the leaves).

3. **Quantifying Water Usage**:
- Research indicates that out of the total water absorbed by plants, only a small fraction is actually utilized for photosynthesis. Specifically, it is estimated that approximately 1% of the total water absorbed is used in the photosynthesis process.

4. **Conclusion**:
- Based on the information, the correct answer to the question is that only **1%** of the total amount of water absorbed by plants is used during photosynthesis.

### Final Answer:
The actual percentage of water used during photosynthesis is **1%**.