Thylakoids are present in

Options

A. Mitochondria
B. vacuoles
C. Chloroplast
D. Ribosomes

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks where thylakoids are present among the given options: mitochondria, vacuoles, chloroplasts, and ribosomes.

2. **Identifying Thylakoids**: Thylakoids are membrane-bound compartments that play a crucial role in photosynthesis. They are specifically involved in the light-dependent reactions of photosynthesis.

3. **Analyzing the Options**:
- **Mitochondria**: These are the powerhouses of the cell, involved in energy production through cellular respiration. They do not contain thylakoids.
- **Vacuoles**: These are storage organelles that can hold various substances but do not contain thylakoids.
- **Chloroplasts**: These are the organelles responsible for photosynthesis in plant cells. They contain thylakoids, which are essential for capturing light energy.
- **Ribosomes**: These are the sites of protein synthesis and do not contain thylakoids.

4. **Conclusion**: Based on the analysis, thylakoids are present in chloroplasts. Therefore, the correct answer is chloroplasts.

**Final Answer**: Thylakoids are present in **chloroplasts**.

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