Reproduction (including Baby) Flashcards
(7 cards)
1
Q
How is embryo supplied with nutrients (5)
A
- placenta…
- from mother’s blood
- diffusion
- large surface area
- umbilical cord
2
Q
Role of placenta in development of embryo (7)
A
- diffusion
- glucose / oxygen
- … for respiration
- amino acids
- … for protein synthesis
- vitamins
- remove co2
3
Q
Function of amniotic fluid surrounding fetus (2)
A
- protects fetus
- cushion / shock absorber
4
Q
What substances are required by fetus that pass from mother’s blood into the blood of fetus (7)
A
- vitamins
- oxygen
- glucose
- amino acids
- minerals
- water
- antibodies
5
Q
How is placenta adapted for the efficient exchange of substances
A
- (has) villi
- … (giving it a) large surface area
- capillaries / blood supply
- concentration gradient
- thin walled / short diffusion distance
6
Q
Role of uterus in reproduction
A
- site of implantation of embryo
- where placenta grows
- provides nutrition / removes waste from embryo
7
Q
FSH v LH for egg
A
- FSH matures egg
- LH causes release of egg
