Introduction of Active Transport

Essential Question:  Give 3 examples of diffusion in everyday life.  Sketch one o these examples and show the high and low concentrations and movement of the molecules.

Today we were introduced to the second form of cell transport, active transport.

We will use a worksheet to frame your work today in the reading on passive and active transport.
Click here to access the document.

Active transport is when energy is needed to be used to move molecules from low concentration to high concentration across a cell membrane.  Often in this form of transport, transport proteins are used to aid the process.

Here is an image of active transport.

Here is a link comparing of active and passive transport.

Here is a video showing active transport in terms of the sodium/ potassium pump.