3.11 Flashcards
1
Q
how is a sperm specialised for their function?
A
1) Flagellum (tail allows the sperm to swim towards egg cell.
2) Lots of mitochondria provide energy for tail movement (swimming).
3) Acrosme contains digestive enzymes to break down the egg cells zona pellucida and enable sperm to penetrate the egg.
2
Q
how is an egg cell specialised for its function?
A
1) Follicle cells form protective coating
2) Zona pellucida- protective layer that sperm have to penetrate
3
Q
what are gametes?
A
they are male and female sex cells found in all organisms that reproduce sexually
