What is the main function of chlorophyll?

Chlorophyll's primary role lies in its ability to absorb light energy, which is essential for the process of photosynthesis. This green pigment, found in the chloroplasts of plant cells, captures sunlight, particularly in the blue and red wavelengths. The absorbed light energy is then transformed into chemical energy through a series of reactions, ultimately converting carbon dioxide and water into glucose and oxygen. This process not only produces vital energy-rich compounds for the plant but also contributes oxygen to the atmosphere, which is crucial for the survival of aerobic organisms. The other options describe processes related to plant metabolism but do not specifically address the unique function of chlorophyll in light absorption.