Examples Of — Active Transport

You urinate roughly 1–2 liters per day. But did you know your kidneys actually filter 180 liters of blood plasma every single day? You don't pee out 180 liters because of active transport.

It must work against the gradient.

As they entered Cellville, the cotransporter used the energy from the sodium ion's concentration gradient to transport the glucose molecule against its own concentration gradient. This process was an example of secondary active transport, where the energy from one molecule's gradient was used to transport another molecule against its gradient. examples of active transport