Photosynthesis is a process in which

Options

A. `ATP` is generated
B. `NADH` is reduced to `NAD`
C. Oxidative phosphorylation occurs
D. `CO_(2)` is reduced.

Answer

**Step-by-Step Solution:**

1. **Understanding Photosynthesis:**
- Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy stored in glucose. This process primarily occurs in the chloroplasts of plant cells.

2. **Key Components of Photosynthesis:**
- The main components involved in photosynthesis are carbon dioxide (CO2), water (H2O), sunlight, and chlorophyll (the green pigment in plants).

3. **Chemical Equation of Photosynthesis:**
- The overall chemical reaction for photosynthesis can be summarized as:
\[ 6 \text{CO}_2 + 6 \text{H}_2\text{O} + \text{light energy} \rightarrow \text{C}_6\text{H}_{12}\text{O}_6 + 6 \text{O}_2 \]
- This equation shows that six molecules of carbon dioxide and six molecules of water, in the presence of light energy, are converted into one molecule of glucose and six molecules of oxygen.

4. **Reduction of Carbon Dioxide:**
- In the process of photosynthesis, carbon dioxide is reduced to form glucose. This means that carbon dioxide gains electrons and is transformed into a carbohydrate (glucose).

5. **Conclusion:**
- Based on the understanding of the photosynthesis process, the correct statement is that "photosynthesis is a process in which carbon dioxide is reduced to carbohydrate."

**Final Answer:**
Photosynthesis is a process in which carbon dioxide is reduced to carbohydrate.

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