Reproduction in Human
Fertilisation
Fertilisation is the fusion of the nucleus of a male gamete with the nucleus of a female gamete,
producing a new cell called a zygote. This then matures into an embryo.
Fertilization video
https://www.youtube.com/watch?v=_5OvgQW6FG4
Comparing sperm and ovum
Adaptation of sex cell
Adaptation of Sperm (Focus on Blue colour Only)
Sperm
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cells have these adaptations:
a tail/flagellum to move them
towards an egg cell
many mitochondria to provide
energy
an acrosome (part of the tip of
the head) that releases
enzymes to digest the egg
membrane
Adaptation of Ovum
The egg cell has energy stores and
a jelly coating that changes after
fertilisation
IMPLANTATION
Menstrual Cycle