Cell Transport. What can cross the cell membrane easily?. 1) Hydrophobic molecules - like lipids, carbon dioxide, and oxygen can dissolve in membrane and cross it w/ ease 2) Water - although it is polar it’s tiny enough to pass b/w the fatty acid tails of the membrane (osmosis)
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Ex. Sugars, salt, amino acids, & ions
Ex. In cells, solvent is water
food particles and extracellular particles
are engulfed by a portion of the cell’s
blood cells engulf bacteria