AS Digestion + absorption EQs

1) Describe the processes involved in the absorption + transport of digested lipid molecules from the ileum into lymph vessels

  • micelles contain bile salts + fatty acids
  • makes fatty acids soluble + brings to ileum
  • fatty acids absorbed by diffusion
  • chylomicrons are formed
  • exocytosis

Describe the role of enzymes in the digestion of proteins in a mammal

  • hydrolysis of peptide bonds
  • endopeptidase in middle
  • exopeptidase at termina ends
  • dipeptidases form amino acids

4b) no significant difference as error bars overlap so mean percentage absorbed is not affected by percentage in diet. need to investigate a wider range/sample