sperm cell

• labelled sperm cell

  
• location

  the epididymis which is next to each testicle (reproductive organs)
• function 


  swim towards an egg in order to fertilize it
• adaptions

  • long tail- the sperm can swim towards the egg
  • lots of mitochondria - so the sperm cell has lots of energy for swimming
  • narrow head - to make the sperm cell streamline for faster swimming.
  • enzymes in the sperm-head to help break through the egg cell membrane.
  • haploid nucleus- 1/2 the number of chromosomes when the cell fuses with egg it has the right amount