The process of photosynthesis is

Options

A. Reductive, exergonic and catabolic
B. Reductive, endergonic and catabolic
C. Reductive, exergonic and anabolic
D. Reductive, endergonic and anabolic.

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 in the form of glucose. This process primarily occurs in the chloroplasts of plant cells.

2. **Identifying the Nature of Photosynthesis**:
- **Anabolic Process**: Photosynthesis is classified as an anabolic process because it builds larger molecules (glucose) from smaller molecules (carbon dioxide and water). Anabolism refers to the synthesis of complex molecules from simpler ones.
- **Endergonic Reaction**: Photosynthesis is also an endergonic process, meaning it requires energy input. In this case, the energy comes from sunlight, which is absorbed by chlorophyll.

3. **Oxidation-Reduction Reactions**:
- During photosynthesis, water (H₂O) is oxidized, meaning it loses electrons and is converted into oxygen (O₂). This is a reduction reaction where the water molecules are broken down to release oxygen.
- Carbon dioxide (CO₂) is reduced, meaning it gains electrons to form glucose (C₆H₁₂O₆). This is the building of a larger molecule from smaller ones.

4. **Conclusion**: Based on the characteristics of photosynthesis, it can be summarized as:
- **Reductive**: It involves the reduction of carbon dioxide to glucose.
- **Endergonic**: It absorbs energy from sunlight.
- **Anabolic**: It builds larger molecules (glucose) from smaller ones (water and carbon dioxide).

5. **Final Answer**: Therefore, the correct classification of the process of photosynthesis is **reductive, endergonic, and anabolic**.