What is "chlorophyll"?

Chlorophyll is a green pigment found in plants, algae, and cyanobacteria that plays a crucial role in photosynthesis, which is the process by which plants convert light energy into chemical energy. This pigment absorbs primarily blue and red wavelengths of light, while reflecting green light, which is why plants appear green. The presence of chlorophyll is essential for the growth and development of plants as it enables them to harness energy from sunlight to produce food.

The other options do not relate to the scientific definition of chlorophyll. A type of meat does not encompass any botanical characteristics, and a driver for hire or a cessation process neither pertains to biological functions nor to plant science. Understanding the function of chlorophyll helps in comprehending concepts like plant biology and ecological systems.