In photosynthetic bacteria, the pigments occur in

Options

A. Chromoplasts
B. Chromatophores
C. Leucoplasts
D. Chloroplasts

Answer

**Step-by-Step Solution:**

1. **Understanding Photosynthetic Bacteria**: Photosynthetic bacteria are prokaryotic organisms that can produce their own food through the process of photosynthesis. This process involves the use of sunlight and pigments.

2. **Identifying the Pigments**: The primary pigment involved in photosynthesis is chlorophyll. However, the chlorophyll in photosynthetic bacteria is different from that found in plants.

3. **Locating the Pigments in Bacteria**: In photosynthetic bacteria, the chlorophyll is not contained within organelles like chloroplasts (which are found in plant cells). Instead, these pigments are located in specialized structures.

4. **Recognizing the Structures**: The structures that contain chlorophyll in photosynthetic bacteria are called chromatophores. These are membrane-bound structures where the photosynthetic pigments are embedded.

5. **Eliminating Other Options**:
- Chromoplasts are related to pigment storage in plants, particularly for colored pigments other than chlorophyll.
- Leucoplasts are involved in storage and do not contain pigments.
- Chloroplasts are specific to plant cells and not found in bacteria.

6. **Conclusion**: Therefore, the correct answer to the question is that in photosynthetic bacteria, the pigments occur in chromatophores.

**Final Answer**: Chromatophores

---