Human Digestive System

• Amylase

  Made In - Salivary Glands & Pancreas

  Where It Works - Mouth & Small Intestine

  Purpose - Breaks down starch into small sugars
• Protease

  Made In - Stomach & Pancreas

  Where It Works - Stomach & Small Intestine

  Purpose - Breaks down proteins into amino acids
• Lipase

  Made In - Pancreas

  Where It Works - Small Intestine

  Purpose - Breaks down fats to fatty acids & glycerol
• Acid In Stomach

  Hydrochloric Acid

  Purpose - Kills microbes & starts chemical digestion
• Bile

  Made In - Liver

  Purpose - Neutralise stomach acid & emulsifies fats into small droplets
• Why Do We Digest Food?

  To break down large insoluble molecules into small soluble ones to absorb into the blood stream
• Glands

  Produce digestive juices
• Liver

  Produces bile
• Stomach

  Digests food
• Large Intestine

  Absorbs water molecules from remaining undigested food, producing faeces
• Small Intestine

  Digests food and absorbs soluble food molecules
• Digestive Enzymes

  Made by specialised cells in the glands and gut lining. They are then secreted out of the body and into the cavity of the digestion system.

  Break down food.