Absorb fatty acids and glycerol into the lymphatic system. 6. The Role of Bile
Secretes pancreatic juice containing amylase, protease, and lipase. , which neutralizes stomach acid and emulsifies fats (increasing surface area). Gallbladder Stores bile. Large Intestine : Absorbs water. : Stores feces. 3. Digestion Processes animal nutrition igcse notes
| Food Test | Reagent | Initial Colour | Positive Result (Colour Change) | | :--- | :--- | :--- | :--- | | | Iodine solution | Orange-brown | Blue-Black | | Reducing Sugar (e.g., glucose) | Benedict's solution (heat) | Blue | Brick-red precipitate | | Protein (Biuret test) | Biuret solution (NaOH + CuSOâ‚„) | Blue | Lilac (Purple) | | Fat (Lipid) | Ethanol + Water (Emulsion test) | Colourless | Milky white emulsion | Absorb fatty acids and glycerol into the lymphatic system
Breaks starch into maltose (found in saliva and pancreatic juice). , which neutralizes stomach acid and emulsifies fats
