Which cell organelles release oxygen :-

Options

A. Mitochondria
B. Golgi-body
C. Chloroplast
D. Ribosome

Answer

### Step-by-Step Text Solution:

1. **Understanding the Question**: The question asks which cell organelles are responsible for releasing oxygen. This is primarily associated with the process of photosynthesis in plants.

2. **Identifying the Process**: Photosynthesis is the process through which green plants convert carbon dioxide and sunlight into glucose (food) and oxygen. This process occurs in specific organelles within the plant cells.

3. **Determining the Organelle**: The organelles responsible for photosynthesis in plant cells are called chloroplasts. These are specialized structures that contain chlorophyll, the pigment that captures light energy.

4. **Mechanism of Oxygen Release**: During photosynthesis, chloroplasts perform a reaction known as photolysis, where water molecules are split into hydrogen and oxygen. The oxygen produced in this reaction is released as a by-product.

5. **Conclusion**: Therefore, the correct answer to the question is that chloroplasts are the cell organelles that release oxygen during the process of photosynthesis.

### Final Answer:
**Chloroplasts are the cell organelles that release oxygen.**

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