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mestny [16]
3 years ago
8

Describe passive transport using the words concentration and concentration gradient

Biology
2 answers:
Monica [59]3 years ago
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<span> input</span>
dsp733 years ago
3 0
Passive transport<span> is a movement of </span>biochemicals<span> and other </span>atomic<span> or </span>molecular<span> substances across </span>cell membranes through <span>concentration gradients</span><span> without need of </span>energy<span> input. Unlike </span>active transport<span>, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in </span>entropy<span>. The rate of passive transport depends on the </span>permeability<span> of the cell membrane, which, in turn, depends on the organization and characteristics of the membrane </span>lipids<span> and </span>proteins<span>. The four main kinds of passive transport are simple </span>diffusion<span>, </span>facilitated diffusion<span>, </span>filtration<span>, and </span>osmosis.
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