Gametes

• Gametes are an organism's reproductive cells
• Male gamete - sperm cell
• Adaptations of sperm cell - a long tail to help it swim

  contains enzymes to help it get to the ovum
• Role of sperm cell - to fertilise the egg cell and form a zygote
• Female gamete - ovum / egg
• Adaptations of an ovum - impenetrable membrane

  Large size with lots of nutrients so that it can

  develop into an embryo
• Role of ovum - contains nutrients for early embryo