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In both Prokaryotes and Eukaryotes, which of the following structures can cross cell membranes using the...

In both Prokaryotes and Eukaryotes, which of the following structures can cross cell membranes using the same protein channels as water? A) mRNA, B) triglycerides, C) large, non-polar molecules, D) DNA, E) gases (CO2 and O2) and small ions.

why?

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