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