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Re: [Phys-l] what light is needed for photosynthesis?

exactly so. cf wikipedia esp "light harvesting"

and graph at

note there are several other supplementing molecules and several varieties of chlorophyll trying to get that (important) green part of the spectrum, while chlorophyll is directly absorbing "only" in the red and blue

Dan MacIsaac, Associate Professor of Physics, SUNY-Buffalo State College
222SciBldg BSC, 1300 Elmwood Ave, Buffalo NY 14222 USA 716-878-3802
<> <>
Physics Graduate Coordinator and Dept Chair pro tem

On Jan 11, 2010, at 7:53 PM, Julie Quah wrote:

Dear all,

My esteemed colleague and I are not very sure about this. A student posed
this question in class when the lesson on light and reflection
was conducted. The logic from the student is that, since the plant is green
in colour (the leaf i mean), it means that green light is reflected. Does it
mean green light is not necessary for photosythesis? How about the plants
with red leaves, orange leaves.....

Your insight is much appreciated. Thank you.

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