So without bile, we would have a lot of trouble actually breaking down our lipids. And once again, all the enzymes that function in the small intestine function at a PH of about 8.5. And what gives it a PH of 8.5, what makes it a basic solution inside the lumen of the small intestine is the bicarbonate that exists in the pancreatic juice. Now, before we go on to absorption, one thing that I forgot to mention inside the small intestine is these specialized types of cells known as goblet cells. So, just like in the stomach, we have mucus cells that secrete mucus inside the small intestine. We also have these cells, known as goblet cells, that secrete mucus.