Question

Why does chlorophyll appears red in reflected light and green in transmitted light

Answer 1

Molecules of chlorophyll-a, chlorophyll-b, carotene and xanthopyhll are situated in the thylakoid membranes.

For light energy to be used by living systems, it must first be absorbed. A pigment is any substance that absorbs light. Chlorophyll, the pigment that makes leaves green, absorbs light in the violet and blue wavelengths and also in the red because it reflects green light, it appears green. Different pigments absorb light energy at different wavelengths. The absorption pattern of a pigment is known as the absorption spectrum. The absorption spectrum of chlorophyll is between 400 nm and 700 nm. This portion of the spectrum is known as photosynthetically active region (PAR