During photosynthesis , light saturation is observed at ... of full sunlight .

Options

A. `2%`
B. `5%`
C. `10%`
D. `15%`

Answer

To solve the question regarding light saturation during photosynthesis, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Light Saturation**:
- Light saturation refers to the point at which an increase in light intensity does not lead to an increase in the rate of photosynthesis. At this point, all other factors (like carbon dioxide concentration and temperature) are not limiting the process.

2. **Analyze the Relationship Between Light Intensity and Photosynthesis**:
- As light intensity increases, the rate of photosynthesis also increases until it reaches a saturation point. Beyond this point, additional light does not enhance the rate of photosynthesis.

3. **Identify the Percentage of Light Utilized by Plants**:
- It is noted that plants utilize only a small fraction of the total sunlight available. According to scientific observations, plants typically absorb about 2% of full sunlight for photosynthesis.

4. **Conclude the Answer**:
- Therefore, during photosynthesis, light saturation is observed at 2% of full sunlight.

### Final Answer:
Light saturation during photosynthesis is observed at **2% of full sunlight**.

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