AP BIOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Figure 5.12 Light energy is absorbed by a chlorophyll molecule and is passed along a pathway to other chlorophyll molecules. The energy culminates in a molecule of chlorophyll found in the reaction center.

Detailed explanation-3: -The electromagnetic energy of sunlight is converted to chemical energy in the chlorophyll-containing cells of photosynthetic organisms. In eukaryotic cells these reactions occur in the organelle known as the chloroplast. In the chloroplast, chlorophyll is the pigment that absorbs the sunlight.

Detailed explanation-4: -The light absorption by chlorophyll takes place within the thylakoids of chloroplast. The energy from the light excites an electron in the chlorophyll molecule from lower energy or ground energy level to a higher energy state or excited energy level.