Chlorophyll is present in all photosynthetic organisms, such as plants and algae. The two main types of chlorophyll are chlorophyll A and chlorophyll B. Chlorophyll A is essential because it captures light wavelengths, such as from sunlight. Chlorophyll A is a green pigment, which gives green plants their color. Chlorophyll B is found mostly in plants as well, but it absorbs only blue light and is yellow in pigment. Chlorophyll B increases Chlorophyll A's ability to capture sunlight. If a plant were to have only one type of chlorophyll, I would expect the plant to produce less energy and at a slower rate.