HELP! plant pigments and their separation

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noob
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HELP! plant pigments and their separation

Post by noob » Tue Nov 08, 2005 11:56 pm

how can pigments be separated? i dont understand what we did in a lab today and i need to know for tomorrow's test

and my teacher gave us a lab worksheet and one question is very hard for me:
Photosynthesis requires the green pigment chlorophyll. Explain how a japanese maple tree having red leaves can carry on photosynthesis. :?:

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Post by noob » Wed Nov 09, 2005 12:24 am

PLEASE HELP ME! please please please put somekind of input that my be of some use for me

thanks

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biostudent84
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Post by biostudent84 » Wed Nov 09, 2005 12:32 am

Pigments are separated through Paper Chromatography. This link should give you an understanding of the process.

http://www.yesmag.bc.ca/projects/paper_chroma.html

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Post by noob » Wed Nov 09, 2005 12:56 am

thanks for the site

but the question after that is what i really need to know
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mith
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Post by mith » Wed Nov 09, 2005 12:57 am

are there other pigments that can photosynthesize other than green cholorophyll?
You should look up plant pigments
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MrMistery
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Post by MrMistery » Wed Nov 09, 2005 7:23 pm

As an answer to your question, the japannese mapple tree has chlorophil. but it also has some other pigments that help in the photosynthesis process and help protect the clorophile molecule which are not green: carotenoid pigments/antocian pigments

By the way i did paper cromatography, it was easy

Good luck on your test
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Post by Crux » Thu Nov 10, 2005 7:32 pm

This is in regards to MrMistery's answer.

There are other pigments in the leaf, like carotenoids that play an energy absorbing-role rather than a photosynthetic one. The carotenoids (yellow-orange) absorb light, which would otherwise damage chlorophyll, and lose it as heat.

And others like xanthophylls (yellow), anthocyanins (red, violet, and blue) -- these are called accesory pigments.

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Help to noob

Post by numba12 » Tue Nov 29, 2005 9:57 pm

A japanese maple tree contains choloropyll, but we cant see it becasue anthocyanin (red) overwhelmes the cholorphyll

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