#3.3.1
During digestion, large biological molecules are hydrolysed to smaller molecules that can be absorbed across cell membranes.
#3.3.2
Digestion in mammals of:
- carbohydrates by amylases and membrane-bound disaccharidases
- lipids by lipase, including the action of bile salts
- proteins by endopeptidases, exopeptidases and membrane-bound dipeptidases.
#3.3.3
Mechanisms for the absorption of the products of digestion by cells lining the ileum of mammals, to include:
- co-transport mechanisms for the absorption of amino acids and of monosaccharides
- the role of micelles in the absorption of lipids.