Stroma of chloroplast is associated with

Options

A. OEC
B. Dark phase
C. Non-cyclie electron transport
D. Cyclic electron transport

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of Chloroplasts:**
- Chloroplasts are the organelles in plant cells where photosynthesis occurs. They consist of various parts, including the thylakoids and the stroma.

2. **Identifying the Function of Stroma:**
- The stroma is the fluid-filled space surrounding the thylakoids in chloroplasts. It plays a crucial role in the photosynthesis process.

3. **Differentiating Between Light Reactions and Dark Reactions:**
- Photosynthesis consists of two main stages: light reactions and dark reactions (Calvin cycle).
- Light reactions occur in the thylakoid membranes and require light to produce ATP and NADPH.
- Dark reactions (Calvin cycle) occur in the stroma and do not require light directly but depend on the products (ATP and NADPH) of the light reactions.

4. **Connecting Stroma to Dark Reactions:**
- Since the dark reactions occur in the stroma and utilize the ATP and NADPH generated from the light reactions to synthesize glucose, we can conclude that the stroma is associated with the dark reactions of photosynthesis.

5. **Final Conclusion:**
- Therefore, the stroma of chloroplast is associated with the dark reactions of photosynthesis.

**Answer:** The stroma of chloroplast is associated with the dark reactions of photosynthesis.

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