Debate and discussion of any biological questions not pertaining to a particular topic.

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Post by whippingboy » Mon Jun 27, 2005 9:08 am

where does it occur in living organisms, what is a concentration gradient?

i need to know answers i am only in year 10 and need to finish some coursework

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Post by karlle1 » Mon Jun 27, 2005 9:29 am

substances move from a region of high concentration to a low concentration, and this happens in many places such as lungs

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Inland Taipan
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Post by Poison » Mon Jun 27, 2005 4:27 pm

Passive transport is the main principle to take in nutrients and O2 in to the cell.

Have a look at our dictionary:

http://www.biology-online.org/search.ph ... n+gradient
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King Cobra
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Post by James » Mon Jun 27, 2005 4:50 pm

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