Percentage of photosyntetically active radiation (PAR) that is captured by plants in synthesis of organic matter is

Options

A. 50-70%
B. 30-40%
C. 80-100%
D. 2-10%

Explanation

To solve the question regarding the percentage of photosynthetically active radiation (PAR) that is captured by plants in the synthesis of organic matter, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Photosynthetically Active Radiation (PAR)**:
- Photosynthetically Active Radiation refers to the portion of sunlight that plants can use for photosynthesis. This typically includes light in the wavelength range of 400 to 700 nanometers.

2. **Percentage of Total Sunlight that is PAR**:
- Approximately 50% of the total sunlight that reaches the Earth's surface falls within the PAR range.

3. **Absorption of PAR by Plants**:
- Of the PAR, chlorophyll pigments in plants absorb a significant portion of this light to carry out photosynthesis.

4. **Percentage of PAR Captured for Organic Matter Synthesis**:
- It is estimated that only about 2 to 10% of the total PAR is actually captured by plants for the synthesis of organic matter during the process of photosynthesis.

5. **Conclusion**:
- Based on this information, the correct answer to the question is that the percentage of photosynthetically active radiation captured by plants in the synthesis of organic matter is **2 to 10%**.

### Final Answer:
The percentage of photosynthetically active radiation (PAR) that is captured by plants in the synthesis of organic matter is **2 to 10%**.

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