Describe passive transport using the words concentration and concentration gradient

2 answers:

5 0

Passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes through concentration gradients without need of energy input

dsp733 years ago

3 0

Passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes through concentration gradients without need of energy input. Unlike active transport, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in entropy. The rate of passive transport depends on the permeability of the cell membrane, which, in turn, depends on the organization and characteristics of the membrane lipids and proteins. The four main kinds of passive transport are simple diffusion, facilitated diffusion, filtration, and osmosis.

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