Glucagon is a peptide hormone. Based on general characteristics of peptide hormones what is true about growth hormone?
A) it needs the help of transport protein to reach its target cells
B) it binds to specific receptor and activates a signal transduction cascade
C) it diffuses into the cell when it reaches its target
D) it is a hydrophobic molecule that is degraded in watery blood

Question

Quizplus · Accepted Answer

Based on the general characteristics of peptide hormones, growth hormone would also bind to a specific receptor and activate a signal transduction cascade. Peptide hormones are generally hydrophilic (water-soluble) and do not diffuse into cells, and they do not require transport proteins.

Glucagon Is a Peptide Hormone