Questions: 1. If a leaf contains many pigments, why does it look only green? 2. Is...

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Answer 1

Answer #1

Green leaves looks green because it contain chlorophyll molecules predominantly. Chlorophyll is a pigment that absorbs red and blue light. Chlorophyll has absorption in the blue region and emits in the green region of spectra. We observe a color which is emitted by the molecule here in this case it is green color by chlorophyll.
We can observe other pigments during emergence of new leaves. During the young leaves production plants produce certain flavonoids such as anthocyanins to protect the tissue from photo oxidative damage. Also during leaf senescence leaves will be red in color due to chlorophyll degradation.

Answer 2

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