Insulin and many other hormones are protein molecules.Based on your knowledge of transport processes,you can say that cells that secrete these types of hormones do so through:

Question

Quizplus · Accepted Answer

Since insulin and many other hormones are protein molecules, they cannot diffuse across the cell membrane on their own. Therefore, cells that secrete these types of hormones do so through exocytosis, which involves the release of molecules from the cell through the fusion of vesicles with the plasma membrane.

Insulin and Many Other Hormones Are Protein Molecules