AP BIOLOGY

Detailed explanation-1: -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-2: -Chlorophyll b absorbs mostly blue and yellow light. They both also absorb light of other wavelengths with less intensity. However, none of them absorbs green, so the leaf looks green because that light is reflected to our eyes instead of being absorbed by the leaf.

Detailed explanation-3: -Carotenoids. Carotenoids are another key group of pigments that absorb violet and blue-green light (see spectrum graph above).

Detailed explanation-4: -As shown in detail in the absorption spectra, chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green. Chlorophyll is found in the chloroplasts of plants.

Detailed explanation-5: -The chlorophyll molecule actually absorbs red and blue light and reflects green light, and the reason it absorbs certain colors of light and reflect other colors is because of its chemical structure.