And so that's why it is a non polar molecule. Now, because carbon dioxide is non polar and because our blood plasma consists mostly of water, a polar molecule, that implies that carbon dioxide will not actually dissolve in our blood plasma very easily. So how exactly do we solve this problem? Well, the way that our body solves this problem is by transforming the carbon dioxide into a slightly different form to make it more soluble in our blood plasma. So when the cells of our tissue are exercising, they're producing a bunch of CO2 gas molecules. And those CO2 gas molecules dissolve or diffuse across the cell membrane and enter the extracellular matrix.