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Can you tell from these absorption spectra whether red light is effective in driving photosynthesis?
a. These absorption spectra indicate that green and yellow wavelengths of light are much more effective than red light.
b. Because the absorption spectra of the pigments are highest in the purple/blue wavelengths, we can assume that red light is not effective.
c. One cannot tell from this graph, but because chlorophyll a does absorb red light, we can predict that it would be effective in driving photosynthesis.



Answer :

Although it is impossible to know from this graph, we can infer that chlorophyll a would be useful in promoting photosynthesis because it does absorb red light.

Thus, the most efficient and effective light for photosynthesis is in the red area (600-700 nm), following by the blues (400-500 nm) and the green (600-700 nm) (500-600 nm). These wavelengths, which range from 400 to 700 nm, are known to be utilised by plants for photosynthetic activity.Although it is impossible to know from this graph, we can infer that chlorophyll a would be useful in promoting photosynthesis because it does absorb red light. Red light is absorbed by chlorophyll. Red light is the most efficient wavelength for photosynthesis since it absorbs the most chlorophyll of all the colors. Although it is impossible to know from this graph, we can infer that chlorophyll a would be useful in promoting photosynthesis because it does absorb red light.

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