Chlorophyll 'a', C - phycocyanin and C - phycoerythrin are pigments of :-

Options

A. Red algae
B. Blue green algae
C. Brown algae
D. Green algae

Answer

To solve the question regarding the pigments Chlorophyll 'a', C - phycocyanin, and C - phycoerythrin, we will analyze the options provided and determine which group of organisms contains these pigments.

### Step 1: Identify the pigments
- **Chlorophyll 'a'** is a common pigment found in many photosynthetic organisms.
- **C - phycocyanin** and **C - phycoerythrin** are pigments typically associated with certain types of algae.

### Step 2: Analyze the options
1. **Red Algae**:
- Red algae primarily contain **Chlorophyll 'a'** and **Chlorophyll 'd'**. They are known for their red color due to the presence of **phycoerythrin**. However, they do not contain **C - phycocyanin**.

2. **Blue-Green Algae (Cyanobacteria)**:
- Blue-green algae contain **Chlorophyll 'a'**, **C - phycocyanin**, and **C - phycoerythrin**. This makes them a strong candidate for the correct answer.

3. **Brown Algae**:
- Brown algae contain **Chlorophyll 'a'** and **Chlorophyll 'c'**, but their characteristic brown color is due to the pigment **fucoxanthin**. They do not contain **C - phycocyanin** or **C - phycoerythrin**.

4. **Green Algae**:
- Green algae primarily contain **Chlorophyll 'a'** and **Chlorophyll 'b'**. They do not contain **C - phycocyanin** or **C - phycoerythrin**.

### Step 3: Conclusion
Based on the analysis, the pigments **Chlorophyll 'a'**, **C - phycocyanin**, and **C - phycoerythrin** are found in **Blue-Green Algae**. Therefore, the correct answer is:

**Answer: Blue-Green Algae (Cyanobacteria)**

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