Select the incorrect statement regarding photosynthesis :

Options

A. it is endothermic (endergonic) process
B. it is a physico-chemical process
C. It is a redox process
D. It is a non enzymatic process

Answer

To solve the question regarding which statement about photosynthesis is incorrect, we will analyze each of the provided statements one by one.

### 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 chloroplasts, which contain the pigment chlorophyll.

2. **Analyzing the Statements**:
- **Statement A**: "It is an endothermic and endergonic process."
- **Analysis**: This statement is correct. Photosynthesis requires energy (light) to proceed, making it endothermic. It also involves the conversion of light energy into chemical energy, which is an endergonic reaction.

- **Statement B**: "It is a physicochemical process."
- **Analysis**: This statement is also correct. Photosynthesis involves physical changes (like the absorption of light) and chemical changes (like the formation of glucose).

- **Statement C**: "It is a redox process."
- **Analysis**: This statement is correct as well. Photosynthesis involves oxidation and reduction reactions; water is oxidized to oxygen, and carbon dioxide is reduced to glucose.

- **Statement D**: "It is a non-enzymatic process."
- **Analysis**: This statement is incorrect. Photosynthesis involves numerous enzymes that facilitate the various biochemical reactions, making it an enzymatic process.

3. **Conclusion**:
- Among the four statements, Statement D is the incorrect one regarding photosynthesis. Therefore, the answer to the question is Statement D.

### Final Answer:
**The incorrect statement regarding photosynthesis is: "It is a non-enzymatic process." (Option D)**

---