The role of chlorophyll in photosynthesis is

Options

A. Absorption of `CO_(2)`
B. Absorpiton of light
C. Absorption of light and photochemical decomposition of water
D. Absorption of water

Answer

### Step-by-Step Solution

1. **Understanding Chlorophyll**: Chlorophyll is a green pigment found in the chloroplasts of plant cells. It plays a crucial role in photosynthesis, the process by which plants convert light energy into chemical energy.

2. **Light Absorption**: The primary role of chlorophyll in photosynthesis is to absorb light, particularly in the blue and red wavelengths of the light spectrum. This absorption of light energy is essential for the photosynthetic process to occur.

3. **Photochemical Decomposition of Water**: When chlorophyll absorbs light, it triggers a series of reactions that lead to the photochemical decomposition of water (H2O). This process involves splitting water molecules into oxygen (O2), protons (H+), and electrons (e-).

4. **Production of Energy Carriers**: The electrons released during the decomposition of water are transferred through a series of proteins in the thylakoid membrane, leading to the formation of energy carriers such as ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate).

5. **Overall Role in Photosynthesis**: Thus, chlorophyll not only absorbs light but also facilitates the conversion of light energy into chemical energy, which is essential for the synthesis of glucose during the Calvin cycle.

### Conclusion
The role of chlorophyll in photosynthesis can be summarized as:
- Absorption of light energy.
- Initiation of the photochemical decomposition of water.
- Production of energy carriers (ATP and NADPH) for the synthesis of glucose.