Both _______of light influence photosynthesis

Options

A. Quality and intensity
B. Quality and duration
C. Duration and Intensity
D. Quality and quantity

Answer

To answer the question "Both _______ of light influence photosynthesis," we need to identify the two properties of light that affect the process of photosynthesis in higher plants.

### Step-by-Step Solution:

1. **Understanding Photosynthesis**: Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, primarily using chlorophyll.

2. **Identifying Key Properties of Light**: The two main properties of light that influence photosynthesis are:
- **Quality of Light**: This refers to the specific wavelengths of light that are absorbed by chlorophyll. The most effective wavelengths for photosynthesis are in the blue (around 400 nm) and red (around 700 nm) regions of the light spectrum.
- **Intensity of Light**: This refers to the amount of light energy that is available to the plant. Higher light intensity generally increases the rate of photosynthesis, up to a certain point where other factors may become limiting.

3. **Conclusion**: Therefore, the two properties of light that influence photosynthesis are:
- Quality of Light
- Intensity of Light

4. **Final Answer**: Both **quality and intensity** of light influence photosynthesis.