Fertilisation Flashcards
(4 cards)
1
Q
Where does the egg travel too after ovulation?
A
The fertilisation zone
2
Q
What happens to the sperm when it reaches the Fallopian tubes?
A
Capacitation who h takes 6-7 hours where the glycoproteins are removed from the acrosomal cap to allow an acrosomal reaction to occur
3
Q
What attracts the sperm to the egg? (2mks)
A
Chemotactic and thermostatic chemicals
4
Q
Describe the two types of polyspermy blocks (4mks)
A
1) Fast polyspermy- uses an electric current
2) Slow polyspermy- uses enzymes to harden zona pellucida
