Cell Membrane Transport

Specificity refers to the ability of a transporter to move one molecule or a closely related group of molecules.

An example of specificity is the GLUT transporters, which move naturally occurring 6 carbon sugars (glucose, mannose, galactose, and fructose) but will not move the disaccharide maltose.

Competition occurs when a carrier can move several members of a related group of substances, but these substances compete with one another.

<p>The rate of transport depends on the concentration and number of transporters. Transport normally increases with increasing concentration until saturation occurs.</p> Signup and view all the answers

<p>The rate of transport is determined by the concentration of the substance being transported and the number of available transporters.</p> Signup and view all the answers