Edexcel IGCSE Biology · Spec 3.11-3.12
Pregnancy and the Placenta
How the placenta and amniotic fluid support and protect the developing fetus during pregnancy.
Biology revision video
Pregnancy and the Placenta
Prefer to watch on YouTube? Open this video on YouTube.
Spec 3.11-3.12
What you need to know
- Describe the roles of the placenta and umbilical cord
- Explain exchange between the mother's and fetus's separate blood supplies
- Explain how amniotic fluid protects the fetus
Active recall
Quick check
Answer each question before opening the answer.
State the functions of the placenta.
It allows exchange of nutrients and oxygen to the fetus and carbon dioxide and waste away from it, while keeping the two blood supplies separate.
What is the role of the amniotic fluid?
It cushions and protects the developing fetus from knocks and bumps.
Biology video companion
Keep your notes and exam practice together
The free Biology workbook follows every video in specification order.