You are expected to know where certain enzymes in the body are produced and what they do.
break down proteins into amino acids. Proteases are produced in the stomach, pancreas and small intestine.
convert carbohydrates into simple sugars.
Amylase is the best example of a carbohydrase. Amylase breaks starch down into maltose. Amylase is produced in the salivary glands, the pancreas and the small intestines.
converts lipids or fats into glycerol and three fatty acids. Lipases are made in the pancreas and the small intestine.
You should also be able to talk about the action of bile in digestion.
is made in the liver and stored in the gall bladder. It is an alkaline substance and is used to neutralise the acid from the stomach when it gets to the small intestine.
This is important as it maintains the pH of the small intestine so the enzymes are not denatured. It also emulsifies fat into small droplets which increases the surface area, which in turn increases the rate of reaction.