An endogenous ligand is:
A) any medication that binds to a receptor and causes a reaction.
B) a molecule that is produced by the body and binds to a receptor.
C) any molecule that is not naturally occurring in the human body.
D) a synthetically made hormone that acts upon the endocrine system.
Answer: B) a molecule that is produced by the body and binds to a receptor.
You might also like to view...
In addition to osmoregulation, the kidneys participate in regulating blood pressure. Specialized cells of the efferent arteriole, called the ____ apparatus, secrete the hormone renin in response to a drop in blood pressure
This, in turn, triggers additional responses that help raise blood pressure. Fill in the blank with the appropriate word.
The cytoskeleton is involved in which of the following cellular responses?
A. phagocytosis B. Toll-like receptor binding C. extravasation D. phagocytosis and extravasation
National parks are an important part of our heritage,
A. and they remain pristine and undisturbed because of their park status. B. but they lack any protection from mining, logging, and grazing. C. but they are endangered by overcrowding, pollution, and in some places, mining. D. that unfortunately exist only in remote inaccessible areas. E. but they are endangered by overcrowding.
The first step in taxonomy is:
a. decription b. identification c. classification