Question 5
The placenta is the site of exchange of important materials between the mother and the developing fetus inside the womb. Which of the following materials does not pass through the placenta?
A. Gases
B. Nutrients
C. Wastes
D. Cells
E. Metabolites
Editorial task: Explain the science and whether the printed question permits a unique answer.
A. Gases
B. Nutrients
C. Wastes
D. Cells
E. Metabolites
Editorial task: Explain the science and whether the printed question permits a unique answer.