The formation of starch in plants results from:

Options

A. Photosynthesis
B. Photolysis
C. Flash photolysis
D. Flash photolysis

Answer

To solve the question regarding the formation of starch in plants, we can break down the process step by step.

### 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. **The Chemical Equation of Photosynthesis**:
- The overall balanced chemical equation for photosynthesis is:
\[ 6CO_2 + 6H_2O \xrightarrow{light \ energy} C_6H_{12}O_6 + 6O_2 \]
- Here, carbon dioxide (CO2) and water (H2O) are converted into glucose (C6H12O6) and oxygen (O2) using light energy.

3. **Formation of Glucose**:
- During photosynthesis, the energy from sunlight is used to convert carbon dioxide and water into glucose. Glucose is a simple sugar that serves as an energy source for the plant.

4. **Polymerization of Glucose**:
- The glucose produced during photosynthesis can undergo a process called polymerization. In this process, multiple glucose molecules are linked together to form larger carbohydrate molecules.

5. **Formation of Starch**:
- The polymerization of glucose leads to the formation of starch, which is a polysaccharide. Starch serves as a storage form of energy in plants.

6. **Conclusion**:
- Therefore, the formation of starch in plants results from the process of photosynthesis, where glucose is synthesized and then polymerized to form starch.

### Final Answer:
The formation of starch in plants results from the process of **photosynthesis**.