Digestion

• Oesophagus


  • Part of the digestive system
  • Connects the mouth to the stomach
• Stomach


  • Part of the digestive system
  • Receives food from the oesophagus
  • Stores and begins to digest food
• Digestion

  Breaking down large molecules Into smaller soluble molecules
• Protein digestion begins in the stomach. It is broken down by Protease or pepsin into amino acids
• Starch digestion begins in the mouth. It is broken down by amalayse into maltose and then into glucose.
• Lipid digestion begins in the Small intestine. It is broken down by lipase into fatty acids and glycerol.
• Bile is produced by the liver. It emmulsifies fat, increasing the surface area to allow for faster digestion as more contact is made between the lipids and lipase.
• Bile neutralises acid from the stomach, which maintains optimum PH for the Small Intestine, allowing the enzymes to work best.