The primary purpose of chlorophyll in plants is to absorb light energy, which is essential for the process of photosynthesis. Chlorophyll is a green pigment located in the chloroplasts of plant cells and plays a crucial role in capturing sunlight. This energy is then used to convert carbon dioxide and water into glucose, providing energy for the plant, and releasing oxygen as a byproduct. The absorption spectrum of chlorophyll predominantly includes blue and red wavelengths, which means it reflects green light, giving plants their characteristic color. By harnessing solar energy, chlorophyll enables plants to produce their food, thus sustaining themselves and providing energy for other organisms in the ecosystem.