Edexcel IGCSE Biology 3.11 Placenta and Embryo Nutrition Questions

Follow oxygen and nutrients from maternal blood to the developing embryo, and explain how placental structure supports exchange and waste removal.

Exam points

Explain how villi provide a large surface area, thin exchange distance and capillary blood flow maintain gradients for diffusion or active transport.
Describe substances transferred across the placenta: oxygen and nutrients to the fetus, and carbon dioxide or urea away from it; maternal and fetal blood remain separate.

[Maximum number: 3]

The diagram shows the human female reproductive system.

The diagram shows a human fetus developing in the uterus.

Explain how the structure of the placenta enables the efficient exchange of substances between the fetus and the mother.

All question bank results loaded