The photoautotrophs contain a pigment called

Options

A. bacteriochlorophyll
B. chlorophyll
C. phycoerythrin
D. phycocyanin

Answer

To solve the question about the pigment contained in photoautotrophs, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Term "Photoautotrophs":**
- Photoautotrophs are organisms that use sunlight to produce their own food through the process of photosynthesis.

2. **Identify the Pigments Involved:**
- The key pigment involved in photosynthesis is chlorophyll. This pigment captures light energy, which is essential for the process of converting carbon dioxide and water into glucose and oxygen.

3. **Analyze the Options Given:**
- A. Bacteria chlorophyll: This is a type of chlorophyll found in certain bacteria.
- B. Chlorophyll: This is the primary pigment used by plants and many bacteria for photosynthesis.
- C. Phycoerythin: This is a pigment found in red algae, not typically associated with photoautotrophs in general.
- D. Phycokinin: This is not a commonly recognized pigment in the context of photoautotrophs.

4. **Determine the Correct Answer:**
- Based on the understanding that chlorophyll is the main pigment used by photoautotrophs to capture light energy, the correct answer is option B: Chlorophyll.

### Final Answer:
The photoautotrophs contain a pigment called **Chlorophyll** (Option B).

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