Examples Of Active Transport Page

It must work against the gradient.

In the microscopic world of cells, nature has a preference for moving things from high to low concentration (a process called passive transport ). But what happens when a cell desperately needs a substance that is scarce on its side but abundant on the other? examples of active transport

is the biological equivalent of swimming upstream. It requires energy (usually in the form of ATP) and specialized protein pumps to move molecules against their concentration gradient—from low to high concentration. It must work against the gradient