Biology, 24.11.2020 04:30 Reddev

Can oxygen and Carbon dioxide molecules move across the cell membrane without help?
Carbon dioxide can because it is non-polar, oxygen cannot because it is polar.
Oxygen can because it is non-polar, but Carbon dioxide can't because it is too
big
Yes, because they are both non-polar molecules and they are both very small.
Neither can because the phospholipids are tightly held together and nothing
passes through them.

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Can oxygen and Carbon dioxide molecules move across the cell membrane without help?
Carbon di...

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