Digestive system p 2

• Types of processes


  • Physical breakdown
  • Chemical breakdown
• Physical breakdown


  1. Place food in mouth

  2. Chew food

  3. Saliva mixes with food to make a liquid mixture
• Physical breakdown


  • Physically mixes food with liquid (saliva)
  • Saliva helps make the food a mixture
• Chemical breakdown


  1. Food goes to stomach

  2. Stomach uses hydrochloric acid

  3. Stomach uses enzymes (pepsin)

  4. Food gets broken down chemically
• Chemical breakdown


  • Uses chemical processes to break down food
  • Hydrochloric acid and enzymes (pepsin) are used
• Food then goes to the intestines after the stomach