Cambridge IGCSE Biology practice
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At a glance
MCQ
Type
cambridge_mcq
Style
Topic
Sexual reproduction in humans
Exam-style question
What is the main function of the placenta during pregnancy?.
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Diagram Description
A diagram shows the placenta attached to the uterine wall with the umbilical cord connecting the fetus to the placenta. Arrows indicate the movement of oxygen and nutrients from mother to fetus and waste products from fetus to mother.
| Substance | Direction of Transfer |
|---|---|
| Oxygen | Mother to fetus |
| Nutrients | Mother to fetus |
| Carbon dioxide | Fetus to mother |
| Waste products | Fetus to mother |
Describe how the placenta and umbilical cord function in the transfer of substances between the mother and fetus.
Aim for approximately 3 distinct marking points.