The microorganism which contains chlorophyll is __________ .

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a microorganism that contains chlorophyll. Chlorophyll is a pigment essential for photosynthesis, which allows organisms to convert sunlight into energy.

2. **Identifying Characteristics of Chlorophyll-containing Organisms**: Organisms that contain chlorophyll are typically autotrophic, meaning they can produce their own food through photosynthesis.

3. **Types of Microorganisms**: Among microorganisms, there are various types, including bacteria, fungi, and algae. However, not all of these contain chlorophyll.

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