Secondary Active Transport

Definition

Secondary active transport is a method of transporting molecules across the cell membrane where the transport of one molecule depends on the gradient created by primary active transport.

Related terms

Primary Active Transport:

This is a type of cellular transportation that uses ATP or other forms of cellular energy to move substances against their concentration gradients, from areas of low concentration to areas of high concentration.

Co-transport: This is a mechanism in which two substances are simultaneously transported across a membrane by one protein, or protein complex which does not have ATPase activity.

Antiporters: These are integral membrane proteins involved in secondary active transport that carry two types of ions or molecules in opposite directions across a cell membrane.