In the process of photosynthesis,

Options

A. `O_(2)` is taken and `CO_(2)` is evolved
B. `O_(2)` is taken and `CO_(2)` in not evolved
C. `CO_(2)` is taken and `O_(2)` is evolved
D. `CO_(2)` is taken and `NO_(2)` is evolved

Answer

**Step-by-Step Solution:**

1. **Understanding Photosynthesis**: Photosynthesis is the process by which certain organisms, known as photosynthesizers (like plants, algae, and some bacteria), convert light energy into chemical energy in the form of glucose. This process occurs primarily in the chloroplasts of plant cells.

2. **Identifying Raw Materials**: The main raw materials required for photosynthesis are carbon dioxide (CO2) and water (H2O). These are absorbed from the environment: CO2 from the air and H2O from the soil.

3. **The Role of Sunlight and Chlorophyll**: Photosynthesis requires sunlight, which provides the energy needed for the chemical reactions. Chlorophyll, the green pigment in plants, captures this light energy.

4. **The Chemical Equation**: The general equation for photosynthesis can be summarized as:
\[ 6CO_2 + 6H_2O \xrightarrow{\text{sunlight, chlorophyll}} C_6H_{12}O_6 + 6O_2 \]
This equation indicates that six molecules of carbon dioxide and six molecules of water, in the presence of sunlight and chlorophyll, produce one molecule of glucose and six molecules of oxygen.

5. **Determining Gases Involved**: In the process of photosynthesis:
- Carbon dioxide (CO2) is taken up (consumed).
- Oxygen (O2) is produced (evolved).

6. **Evaluating the Options**: Based on the understanding of photosynthesis:
- Option stating that oxygen is taken and CO2 is evolved is incorrect (this describes aerobic respiration).
- Option stating that O2 is taken and CO2 is not evolved is also incorrect.
- Option stating that CO2 is taken and O2 is evolved is correct.
- Option stating that CO2 is taken and NO2 is evolved is incorrect.

7. **Conclusion**: The correct answer is that during photosynthesis, carbon dioxide (CO2) is taken up and oxygen (O2) is evolved.

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