Passive transport is the cellular process of moving molecules and other substances across membranes. Passive transport differs from active transport in it that does not involve any chemical energy. Rather, passive transport relies on the innate permeability of the cell membrane and its component protein and lipids.
Osmosis
In biological terms, osmosis is the diffusion of water though a membrane to a region with a lower concentration of water.
Diffusion
Diffusion is the overall movement of material from an area of higher concentration to an area of lower concentration.
Why is diffusion high to low instead of low to high concentration ?
ReplyDeleteIt's high to low because diffusion doesn't use energy.
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