Hormones That are Proteins or Protein Derivatives

Question

Hormones that are proteins or protein derivatives
A) usually are administered orally
B) react with DNA to alter protein synthesis
C) diffuse through the cell membrane to react with receptors inside the cell
D) act through a second messenger called cyclic AMP

Accepted Answer

Hormones that are proteins or protein derivatives act through a second messenger called cyclic AMP. They do not diffuse through the cell membrane to react with receptors inside the cell, as they are too large to pass through the membrane. They also typically are not administered orally, as they would be digested before reaching their target cells. Finally, they do not typically react with DNA to alter protein synthesis.