B2

• Teeth break down food

  Mechanically
• Saliva


  Contains amylase
• Liver

  1. Contains bile

  2. Bile is stored in the gall bladder

  3. Bile goes into the small intestine
• Stomach

  1. Contains hydrochloric acid

  2. Contains enzymes to chemically break down food
• Pancreas

  1. Secretes amylase

  2. Breaks down starch into glucose in the small intestine
• Large intestine


  Water is absorbed into the blood stream
• Enzymes

  Special proteins that break down molecules into shorter ones
• Enzyme practical

  1. Mix amylase with starch

  2. Start timer

  3. Every 10 seconds add iodine

  4. Record time taken for no starch to be detected

  5. Repeat at different temperatures
• Communicable diseases

  Caused by pathogens
• Non-communicable diseases


  Caused by inside of your body (e.g. heart disease, lung disease, liver disease, cancer, diabetes)
• Leaf

  • Provides photosynthesis
  • Provides gas exchange
  • Water evaporates out
• Flower


  • Has reproductive organs
• Meristem


  • Stem cell production
• Xylem

  • Continuous tubes that carry water and dissolved mineral ions
• Phloem


  • Tube of cells that carries sugars and other nutrients to where it's needed