Diffusion Lab

Ok, so today's lab was all about DIFFUSION.  The pink cube was supposed to represent a "cell".  The hydrochloric acid (HCl) represented food.  As the cell was "fed" it turned white.  As you saw in today's lab, not all the cell's got fed evenly.  The larger the cell, the less it was fed!  This has to do with the cell membrane's surface area to cell volume ratio.  We will discuss this in class on Thursday.  However, be thinking about it tonight :)