Please enable JavaScript.

Coggle requires JavaScript to display documents.

Class 3B. Digestion and Absorption (organs/body parts for digestion (mouth…

- - - - activated from pepsinogen by HCl
    - - trypsin
        
        activated from trypsinogen
      - chymotrypsin
        
        activated from chymotrypsinogen
      - elastase
        
        activated from proelastase
- - - - amylase
        
        saliva
        
        small intestine
  - - - lactase
        
        small intestine
    - - sucrase
        
        small intestine
    - - maltase
        
        small intestine
- - - - polar face AND non-polar face
      - amphiphilic
    - - Emulsification of lipids in food
      - stabilize mixed micelles
    - - Precursor
        
        cholesterol - bile acids
    - - also known as: Enterohepatic Circulation
      - absorbed towards the end of ileum of small intestine
      - carried in portal blood, bound to albumin
      - added to bile again by liver and secreted again through gallbladder
  - - - Enzyme: lipase
        
        saliva
        
        pancreas
      - Colipase
    - - Enzyme: phospholipases
    - - Enzyme: esterases
  - - - Because of both limited solubility and detergent properties of free fatty acids
        
        free fatty acids need to be re-esterified to less polar products for transport in the form of lipoprotein aggregates
        
        free fatty acids released from adipocytes are transported in plasma bound to serum albumin,
        
        the high concentrations of free fatty acids present after a meal would overwhelm the albumin transport system.
      - composition
        
        triglyceride (84%)
        
        other lipids and proteins
        
        cholesterol
        
        cholesteryl ester
        
        phospholipids
        
        apolipoproteins
- - - - lipase
      - amylase
      - protease