Which of the following would not be transferable across the blood-brain barrier?
A)oxygen
B)water
C)carbon dioxide
D)electrically charged molecules

Question

Quizplus · Accepted Answer

Electrically charged molecules are not able to pass through the blood-brain barrier due to its strong lipid bilayer membrane. This barrier is designed to protect the brain from harmful substances and exerts tight control over the exchange of substances between the blood and the brain. Oxygen, water, and carbon dioxide are small, uncharged molecules that are able to pass through the blood-brain barrier.

Which of the Following Would Not Be Transferable Across the Blood-Brain