This family of membrane proteins are involved in [[Active Transport - Physiology#Secondary Active Transport|Secondary Active Transport]]. They bind two molecules and transport them accross the membrane either in the same direction ('''symporter''') or in opposite directions ('''antiporter'''). the [[Active Transport - Physiology#Development of Potential Energy|potential energy]] derived from forcing one molecule across this allows the other cotransported molecule to be transported against its gradient.
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This family of membrane proteins are involved in [[Active Transport - Physiology#Secondary Active Transport|Secondary Active Transport]]. They bind two molecules and transport them accross the membrane either in the same direction ('''symporter''') or in opposite directions ('''antiporter'''). The [[Active Transport - Physiology#Development of Potential Energy|potential energy]] derived from forcing one molecule across this allows the other cotransported molecule to be transported against its gradient.
==More Information==
==More Information==
If more information on Facilitated Diffusion is need it can be found [http://en.wikipedia.org/wiki/Passive_diffusion here]
If more information on Facilitated Diffusion is need it can be found [http://en.wikipedia.org/wiki/Passive_diffusion here]