Which of the Following Molecules Would Be Able to Passively

question 88

Multiple Choice

Which of the following molecules would be able to passively cross the blood-brain barrier?

• A) small, uncharged molecules
• B) large, charged molecules
• C) glucose
• D) amino acids

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Definitions:

Lateral Hypothalamus

It is the part of the hypothalamus that plays a crucial role in hunger and thirst regulation.

Amygdala

A region of the brain involved in experiencing emotions, particularly fear and pleasure.

Prefrontal Cortex

An important part of the frontal lobes that is involved in higher cognitive functions such as planning, reasoning, and self-control.

Cholecystokinin

A hormone secreted by the small intestine that stimulates the release of digestive enzymes from the pancreas and bile from the gallbladder.