1. Semi-Permeable Plasma Membrane - Undergoing Diffusion
... solute concentration, down a solute concentration gradient is known as osmosis. Osmosis allows cells to regulate the amount of water within their membrane in order to keep from shrinking or swelling (Glencoe/McGraw-Hill, 2006, p. 83). Both diffusion and osmosis play a substantial role in maintain the homeostasis of a cell, which is the tendency of an organism or a cell to regulate its internal ... and osmosis both occur across a selectively permeable membrane, which is defined as a membrane that allows certain molecules or ions to pass through it by means of active or passive transport ...
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