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How many members are in the U.S.Senate?
Cotransport
The active transport of a substance from a region of low concentration to a region of high concentration by coupling its transport to the transport of a substance down its concentration gradient.
Concentration Gradient
A gradual change in the concentration of solutes in a solution as a function of distance through a solution.
ATP
Adenosine Triphosphate, a molecule that stores and transfers energy within cells, crucial for many cellular processes.
Facilitated Diffusion
The passive transport of ions or molecules by a specific carrier protein in a membrane. As in simple diffusion, net transport is down a concentration gradient, and no additional energy has to be supplied. Compare with diffusion and active transport.
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