Specialized cells

• Unicellular Organisms

  Made up of 1 cell throughout their whole life

  Able to make substances to carry out the functions of life

  Can divide + multiply quickly

  Examples, Bacteria + Amoeba
• Multicellular Organisms

  Organisms made up of multiple cells throughout their whole life

  Example, a human
• Cell specialization

  The process where general cells evolve to form specific cells with specific functions

  Examples, Red blood cells
• Red Blood Cells

  Adapted to transport oxygen

  No nucleus, leaves more space to carry oxygen

  Disc shape, gives a larger surface area over which oxygen can be absorbed
• Neurons

  Adapted to send messages all over the body through nerves

  Long axon, moves impulses from one part of the body to another

  Dendrites, contact other nerves

  Myelin coat, provides insulation
• Sperm cells


  Adapted to carry out sexual reproduction

  Have many mitochondria, to provide energy whilst it swims

  Have a flagellum tail, helps to swim to the uterus