Hormone A is a large protein composed of several polypeptides. Hormone B is a small fatty acid derivative. Which of the following statement correctly predicts the way these hormones interact with their target cells?
A) Hormone A would bind to a membrane-bound receptor, while hormone B would bind to an intracellular receptor.
B) Hormone A would bind to an intracellular receptor, while hormone B would bind to a membrane-bound receptor.
C) Hormone A and hormone B would bind to membrane-bound receptors.
D) Hormone A and hormone B would bind to intracellular receptors.

Question

Quizplus · Accepted Answer

Hormone A, being a large protein, cannot easily cross the cell membrane and thus would bind to a membrane-bound receptor. Hormone B, being a small fatty acid derivative, can cross the cell membrane and would likely bind to an intracellular receptor.

Hormone a Is a Large Protein Composed of Several Polypeptides