Which hormone class would utilize second messenger systems?
A) lipophillic
B) hydrophilic
C) steroids
D) those with receptors inside the cell
E) all of these answers.

Question

Quizplus · Accepted Answer

Hydrophilic hormones are water-soluble and cannot cross the cell membrane, so they utilize second messenger systems to relay their signals into the cell. Lipophilic hormones such as steroids are able to cross the cell membrane and bind directly to receptors inside the cell. Therefore, they do not utilize second messenger systems.

Which Hormone Class Would Utilize Second Messenger Systems