Asked by Alexis Becton on May 03, 2024
Verified
In the following pairs, which lists the first messenger followed by a second messenger?
A) insulin; glucagon
B) ACTH; cortisol
C) TSH; thyroxin
D) glucose; insulin
E) peptide hormone; cAMP
First Messenger
Chemical signal, such as a peptide hormone, that binds to a plasma membrane receptor protein and alters the metabolism of a cell because a second messenger is activated.
Second Messenger
Chemical signal, such as cyclic AMP, that causes the cell to respond to the first messenger—a hormone bound to a plasma membrane receptor protein.
Peptide Hormone
Type of hormone that is a protein, a peptide, a glycoprotein, or is derived from an amino acid.
- Understand the fundamental processes and impacts of hormonal activity within the body.
Verified Answer
ZK
Zybrea KnightMay 06, 2024
Final Answer :
E
Explanation :
Peptide hormone binding to its receptor activates adenylyl cyclase, which converts ATP to cAMP, leading to further downstream signaling.
Learning Objectives
- Understand the fundamental processes and impacts of hormonal activity within the body.