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by Minsoo Kim on August 13th, 2005

Minsoo Kim

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What wavelength of light is most effective for photosynthesis?

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  • by lynnenorth on January 8th, 2006

    lynnenorth

    Actually, chlorophyll a has two peaks of best efficiency, one in the blue part of the spectrum (around 430 nm) and one in the red part of the spectrum (680 nm); however, there are "associated pigments" which take advantage of almost every part of the visible spectrum, and most of the energy absorbed is passed along a line of receptors (losing bits along the way, of course) until the energy is equivalent to that absorbed at 700 nm. Photosynthesis is *least* effective in the green-yellow part of the spectrum, around 520-550 nm.

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    • where did you get this information from because it would be really helpful for an assignment...i just need a reference please : )

      Maddison_Y

      by Maddison_Y on March 13th, 2011

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