Which of the following substances can pass through the endothelial membrane in the blood-brain barrier unassisted (i.e., without active transport)?
A)glucose
B)carbon dioxide
C)amino acids
D)All of the answers are correct.

Question

Quizplus · Accepted Answer

Carbon dioxide is a small, non-polar molecule that can diffuse through the lipid bilayer of the endothelial cells in the blood-brain barrier unassisted.

Which of the Following Substances Can Pass Through the Endothelial