The cell membrane is composed of a phospholipid bilayer. Because it is made of lipids, they are non-polar molecules. That means that other non-polar molecules can easily pass through. In addition to other non-polar molecules, small, uncharged molecules like water, glycerol, ethanol can also pass through without the use of channel or carrier proteins. <span />
- 24 micron m^2 represents the value of the surface area.
- Surface area has unit of m^2.
<u>Answer:</u>
<u>surface area</u>
Hope you could understand.
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Carb carccarb carb seb carb
