what is a substance that can pass throug

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alishasman

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$50.00 what is a substance that can pass throug

From Biology: General-Biology
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Due on Dec. 15, 2008
Asked on Dec 15, 2008 at 3:11:53PM

Q:
what is a substance that can pass through cell membranes by diffusion ??

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Xcel
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$1.00 Diffusion

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Posted on Dec 15, 2008 at 3:15:53PM

A:
Preview: ... mall and nonpolar (hydrophobic) molecules can freely pass through the membrane, but charged ions and large molecules such as proteins and sugars are barred passage. The ...

The full tutorial is about 125 words long .

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dmc1259
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$50.00 Aced my Bio Class...Here is the answer from my test same question, it is correct

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Posted on Dec 15, 2008 at 5:19:21PM

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Preview: ... think.<br><br>Na+ and Cl- can still pass through passive transport if they have a concentration gradie ...

The full tutorial is about 77 words long .