AP BIOLOGY

Detailed explanation-1: -Chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Greenlight is not absorbed but reflected, making the plant appear green.

Detailed explanation-2: -Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light. That particular light wavelength is reflected from the plant, so it appears green. Plants that use photosynthesis to make their own food are called autotrophs.

Detailed explanation-3: -Land plants are green because their photosynthetic pigments reflect green light, even though those wavelengths hold the most energy.

Detailed explanation-4: -Plants can synthesize their own food with the help of chlorophyll found in leaves in the presence of sunlight by the process of photosynthesis. These chlorophyll traps the light and absorbs all the constituent colors present in the white light except for the green color. The green color is reflected back.

Detailed explanation-5: -The colours of visible light form a colour wheel. Within that wheel the colour an object appears to be is the colour complementary to the one it most strongly absorbs. As such, plants look green because they absorb red light most efficiently and the green light is reflected.