Blood

• What would a white blood cell doing phagocytosis mean?

  They engulf a pathogen - to kill it
• What do antibodies do?

  • Produced by white blood cells
  • bind onto pathogens to help destroy them
• White blood cells release antitoxins. What does this do?


  Neutralise any toxins
• are red blood cells eukaryoric or prokaryotic?

  Prokaryotic
• Are white blood cells eukaryotic or prokaryotic?


  Eukaryotic
• What is the role of platelets?

  Blood clotting

  (when you get a cut)
• Why do we need platelets?

  • to prevent blood loss
  • to prevent pathogens from entering
• What does plasma carry around (in the blood) ?

  1. Red blood cells
  2. white blood cells
  3. platelets
  4. (nutrients) - glucose, amino acids
  5. hormones
  6. proteins
  7. waste products
  8. antibodies + antitoxins
• What do we have in our blood?

  1. Red blood cells
  2. white blood cells
  3. platelets
  4. plasma
• Why do red blood cells transport oxygen?

  For respiration
• What is the red pigment inside of red blood cells called?

  Haemaglobin. When oxygen is combined, it is called oxyhaemoglobin
• Do platelets have a nucleus?

  No. They are only fragments of cells