• Disaccharide name
  e.g., lactose, glucose and galactose; 1 mark
• Both monomers that make up mpa
  e.g., maltose, glucose and glucose
  e.g., sucrose, glucose and fructose; 1 mark

a. Amylase breaks down/catalyzes/hydrolyses starch to maltose 1 mark

b. Lipase breaks down/catalyzes/hydrolyses fats to fatty acids and glycerol 1 mark

c. Proteases/peptidases break down/catalyze/hydrolyze proteins into smaller polypeptides/dipeptides/amino acids 1 mark

Award [2] if all three enzymes and substrates named correctly and one further mark for all three products named correctly.

Allow specific enzymes

• Both are unsaturated fatty acids
  OR
  Both have two carbon atoms joined by a double bond; 1 mark

• In cis-fatty acids, the two H atoms are on the same side, while in trans-fatty acids, they are on opposite sides
  OR
  Cis-fatty acids are healthier than trans-fatty acids
  OR
  Cis-fatty acids have a lower boiling/melting point than trans
  OR
  Cis-fatty acids have a kink «in the chain» but trans do not; 1 mark

Accept answer in an annotated diagram