Homework Help: biology

Posted by natash on Thursday, April 10, 2008 at 10:34pm.

Minerals ener the plant through the soil solution. SOme are passively carried along with the ater that is taken up. Plants can also selectively absorb minerals and accumulate them. This requires active transport across a cell membrane. If it were not for the Casparian strip of endodermis, roots would not be able to actively concentrate minerals into the stele-explain why?

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