1. chemical digestion of lipids occurs primarily in the small intestine. before enzymes can break down fats like triglycerides (the most common type of fat in our foods), they must undergo emulsification. describe the process of emulsification. name the substance which performs this job. name the organ that synthesizes this substance. name the organ which stores and concentrates this substance. how does this substance get into the duodenum of the small intestine? 2. after fats are emulsified, they are chemically digested by brush border enzymes in the small intestine and in pancreatic juice. what is the general name for the enzyme which digests fats? 3. cholesterol is a type of fat. why is it important to have some cholesterol in our diets – that is, what functions does it perform in the body? why is it important to avoid eating too much cholesterol? 4. unsaturated fats (such as vegetable oil) are more healthy than saturated fats (such as solid fats like butter, lard). explain why we should avoid eating a lot of foods containing high levels of saturated fat.