name the pigment(s) which increases the absorption range for photosynthesis.

Answer

To answer the question regarding the pigments that increase the absorption range for photosynthesis, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Main Pigment**: The primary pigment involved in photosynthesis is chlorophyll. Specifically, chlorophyll a is the main pigment that acts as the reaction center for photosynthesis.

2. **Understand the Limitations of Chlorophyll a**: While chlorophyll a is crucial for photosynthesis, it absorbs light primarily in the blue (around 430 nm) and red (around 662 nm) wavelengths. This means it does not capture all the available light wavelengths effectively.

3. **Introduce Accessory Pigments**: To enhance the absorption of light across a broader spectrum, plants utilize accessory pigments. These pigments capture additional wavelengths of light that chlorophyll a cannot absorb efficiently.

4. **List the Accessory Pigments**: The key accessory pigments that increase the absorption range for photosynthesis include:
- **Chlorophyll b**: Assists in capturing light energy and expands the absorption spectrum.
- **Beta-carotene**: An orange pigment that absorbs blue and green light.
- **Xanthophyll**: A yellow pigment that also absorbs light in the blue-green region.

5. **Summarize the Role of These Pigments**: Together, chlorophyll a, chlorophyll b, beta-carotene, and xanthophyll work in concert to maximize the light absorption capacity of the plant, allowing for more efficient photosynthesis.

### Final Answer:
The pigments that increase the absorption range for photosynthesis are chlorophyll b, beta-carotene, and xanthophyll.

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