Digestion and Absorption

• Explain the advantages of lipid droplet and micelle formation:

  Lipid droplets can increase the SA for lipase action

  This means there’s faster hydrolysis

  Micelles can carry the fatty acids and monoglycerides to the cell surface membrane of epithelial cells
• In a person with a blocked pancreatic duct, (leads to high concn of amylase in blood) starch digestion is affected. Explain how:

  Little/less starch is digested in the intestine as little/less/no amylase can enter the small intestine/present in the small intestine
• Healthy people have amylase in their blood. This doesn’t cause any harmful effects in the body. Explain why:

  Amylase is specific to starch

  There’s no starch in human blood/cells/tissues

  Starch is only found in plants
• Pancreatitis can lead to the release of protein digesting enzymes into the blood. This is harmful to the body. Explain why:

  Can lead to hydrolysis/digestion of our own proteins such as antibodies, membrane proteins