Question

Complete the following:

Placenta is _____ permeable.

Answer 1

Placenta:

1. It is a temporary organ that develops between the mother and the embryo after implantation.
2. Through the placenta the foetus exchanges respiratory gases, nutrients and excretory wastes with the maternal blood.
3. Placenta supplies the foetus with everything it needs for development. Oxygen and nutrients move from the maternal blood to the foetal blood through this placenta by diffusion.
4. Placenta has protective roles as it acts as a semi-permeable barrier that prevents certain exogenous compounds selectively and allows only the required materials.

Placenta is selectively permeable.