Chemical to attack the jelly coating of the egg to help the sperm burrow in to the egg to fertilise

1
Chemical to attack the jelly coating of the egg
to help the sperm burrow in to the egg to
fertilise
Sperm Cell
Streamlined head
0.0025mm
To help it swim
0.06mm
2
Egg or Ovum Cell
Cytoplasm, containing a store of energy for the
fertilised egg to develop
To make sure only one sperm enters
0.1mm