Examlex
In regard to setting up behavioural-change programmes that address the HIV/AIDS epidemic, which of the following is an accurate statement?
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.
Hypothalamus
A region of the brain that controls a variety of functions including temperature regulation, hunger, and thirst, as well as hormones.
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