"Golden Algae" is the common name of Algae belonging to :-

Options

A. Chrysophyta
B. Pyrrophyta
C. Euglenophyta
D. Cyanophyta

Answer

**Step-by-Step Solution:**

1. **Identify the Common Name**: The question asks for the common name "Golden Algae."

2. **List the Options**: The options provided are:
- Cryophyta
- Pyrophyta
- Euglenophyta
- Cyanophyta

3. **Analyze Each Option**:
- **Cryophyta (Chrysophyta)**: This group is known for the presence of yellow and brown pigments (carotenoids), which give them a golden color. This aligns with the common name "Golden Algae."
- **Pyrophyta**: This group includes organisms that are reddish-brown due to the presence of pigments like peridinin, which does not correspond with the golden color.
- **Euglenophyta**: This group contains chlorophyll A, chlorophyll B, and carotenes, which can result in green or red colors, but not golden.
- **Cyanophyta**: Known as blue-green algae, they contain pigments that give them a blue-green appearance and do not match the golden color.

4. **Conclusion**: Based on the analysis, the group that corresponds to "Golden Algae" is **Chrysophyta** (option 1).

5. **Final Answer**: The common name "Golden Algae" refers to algae belonging to **Chrysophyta**.

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