Phycobilins found in blue green algae and red algae are/have

Options

A. Soluble in hot water
B. Found in chromatophores
C. `Mg^(2+)` and tail
D. Lipoidal in nature

Answer

To answer the question about phycobilins found in blue-green algae and red algae, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Phycobilins**:
- Phycobilins are pigments that are primarily found in certain types of algae, specifically blue-green algae (cyanobacteria) and red algae. They play a crucial role in photosynthesis by capturing light energy.

2. **Analyzing the Options**:
- The question provides four options regarding the characteristics of phycobilins:
1. Soluble in hot water
2. Found in chromatophores
3. Magnesium ion and tail
4. Lipoidal in nature

3. **Evaluating Each Option**:
- **Option 1: Soluble in hot water**: This is true. Phycobilins are indeed soluble in hot water, which is a characteristic feature.
- **Option 2: Found in chromatophores**: This is not accurate. Phycobilins are found in structures called phycobilisomes, not chromatophores.
- **Option 3: Magnesium ion and tail**: This option is misleading. Phycobilins do not contain magnesium ions in their structure like chlorophyll does.
- **Option 4: Lipoidal in nature**: This is incorrect. Phycobilins are water-soluble and not lipoidal (fatty).

4. **Conclusion**:
- Based on the analysis, the correct answer is **Option 1: Soluble in hot water**.

### Final Answer:
Phycobilins found in blue-green algae and red algae are soluble in hot water.