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Chloroplasts use slightly different chlorophyll molecules to absorb different wavelengths of light. One reason for this is to capture a wider range of wavelengths, therefore capturing more energy.

M0tty. Chlorophyll Ab Spectra. Digital image. Wikimedia Commons, 2 Aug. 2012. Web. 28 Oct. 2016.

Using the absorption spectra of chlorophyll a and b above, which of the peaks on the absorption spectra shown would have the highest energy to be captured?

A

Chlorophyll a's left-most peak.

B

Chlorophyll a's right-most peak.

C

Chlorophyll b's left-most peak.

D

Chlorophyll b's right-most peak.

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