Animal cell specialisation

• Specialised cells


  Cells with a structure that helps them carry out a particular function within the organism
• Sperm cell


  • Function is to fertilise an egg
  • Has a tail to swim to the egg
  • Has mitochondria to release energy
  • Has a nucleus with DNA
• Nerve cell


  • Function is to carry electrical signals
  • Has a long shape
  • Has branches
  • Has a myelin sheath to make impulses faster
• Muscle cell


  • Function is to contract
  • Has lots of mitochondria to release energy
  • Has a long shape to allow contraction
• The nucleus is the control centre of the cell.