Blood

• what is blood made up of

  • plasma
  • red blood cells
  • white blood cells
  • platelets
• what is plasma

  liquid that carries components into the blood

  • red blood cells
  • white blood cells
  • platelets
  • glucose
  • amino acids
  • carbon dioxide
  • hormones
  • proteins
  • antibodies// antitoxins
• what are red blood cells

  • carry oxygen molecules from lungs to cells all around the body
  • bioconcave disc provides large surface area
  • no nucleus allowing more room for oxygen
  • contains haemoglobin which makes blood red
• what are white blood cells

  • part of immune system
  • have a nucleaus
  • produce antibodies
  • engulf pathogens
  • produce antitoxins
• what are platelets

  • help blood clots form at wound sites
  • small fragments of cells
  • no nucleus
  • without them, cuts would result in excessive bleeding and bruising