Light compensation point is mostly

Options

A. 2% of maximum sun light
B. 15% of maximum sun light
C. 0.5% of maximum sun light
D. 10% of maximum sun light

Answer

### Step-by-Step Solution:

1. **Understanding the Concept**: The light compensation point is a critical concept in plant physiology. It is defined as the light intensity at which the rate of photosynthesis equals the rate of respiration in a plant. At this point, the plant is not gaining or losing carbon dioxide; it is in a state of equilibrium.

2. **Photosynthesis and Respiration**: During photosynthesis, plants convert light energy into chemical energy, producing glucose and oxygen while consuming carbon dioxide. Conversely, during respiration, plants consume oxygen and glucose to produce energy, releasing carbon dioxide.

3. **Identifying the Compensation Point**: The light compensation point occurs when the amount of carbon dioxide produced by respiration equals the amount of carbon dioxide consumed during photosynthesis. This is crucial for understanding how plants adapt to different light conditions.

4. **Analyzing the Options**: The question provides multiple-choice options. Based on the understanding of the light compensation point, we need to identify which option correctly represents the light compensation point.

5. **Selecting the Correct Answer**: According to the video transcript, the correct answer is that the light compensation point is mostly at 2% of the maximum sunlight intensity. This means that at this low light level, the plant's photosynthesis and respiration rates are balanced.

### Final Answer:
The light compensation point is mostly at **2% of the maximum sunlight intensity**.

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