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B5. Transportation (Transport in plants (Xylem (Transports water, Dead…

- - - - Contain Haemoglobin
      - Bind to oxygen in lungs
      - No nucleus
      - Larger surface area, better diffusion
    - - Part of immune system
      - Make antibodies
      - Do phagocytosis (engulfing)
    - - Yellow liquid
      - Has carbon dioxide and glucose dissolved into it
    - - Form scabs
      - Stop blood from flowing out
    - - Artery
        
        Oxygenated blood (except pulmonary)
        
        Away from heart
        
        High pressue
        
        Narrow lumen (hole), can stretch
        
        Thick walls, contain muscles
        
        No valves
      - Vein
        
        Deoxygenated blood (except pulmonary)
        
        Towards the heart
        
        Low pressure
        
        Wide lumen
        
        Quite thin walls, less msucle
        
        Contains valves
      - Capillary
        
        Both oxygenated and deoxygenated blood
        
        To cells and back
        
        Very low pressure
        
        Very narrow lumen, wide enough for one red blood cell
        
        Very thin, one-cell thick walls
        
        No valves
  - - - Deoxygenated blood enters through vena cava (body vein)
      - Blood moves from right atrium to right ventricle
      - Pulmonary artery takes blood to lungs to be oxygenated
    - - Oxygenated blood enters through pulmonary vein (from lungs)
      - Blood moves from left atrium to left ventricle
      - Artery takes oxygenated blood to the body