Calvin cycle operates in one type of chloroplasts, whereas Hatch - Slack pathway occurs in

Options

A. Mitochondria
B. Golgi bodies
C. One type of Chloroplasts
D. Two type of Chloroplasts

Answer

**Step-by-Step Solution:**

1. **Understanding the Calvin Cycle:**
- The Calvin cycle is a part of photosynthesis that occurs in the chloroplasts of plants. It primarily takes place in the stroma of chloroplasts and is responsible for fixing carbon dioxide into organic molecules.

2. **Identifying the Hatch-Slack Pathway:**
- The Hatch-Slack pathway, also known as the C4 pathway, is another mechanism of carbon fixation that occurs in certain plants, particularly those adapted to hot and dry environments.

3. **Types of Chloroplasts:**
- The Calvin cycle operates in one type of chloroplast, specifically in the mesophyll cells of C3 plants.
- The Hatch-Slack pathway operates in two types of chloroplasts: one type in the mesophyll cells and another type in the bundle sheath cells.

4. **Examples of Plants:**
- The Hatch-Slack pathway is found in C4 plants such as sugarcane and maize, which have adapted to efficiently fix carbon dioxide in conditions of high light intensity and temperature.

5. **Conclusion:**
- Therefore, the correct answer to the question is that the Hatch-Slack pathway occurs in two types of chloroplasts.

**Final Answer:**
The Hatch-Slack pathway occurs in two types of chloroplasts.

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