Fred Has Schizophrenia and Is Taking a Medication That Works

question 68

Multiple Choice

Fred has schizophrenia and is taking a medication that works by blocking dopamine receptors.Fred is most likely taking which kind of drug?

• A)an antagonist
• B)an agonist
• C)a second messenger
• D)an antidepressant

---

Definitions:

Amino Group

An amino group is a functional group consisting of a nitrogen atom attached to two hydrogen atoms (–NH2) and is a fundamental component of amino acids and thus proteins.

Amino Acids

Organic compounds that serve as the building blocks of proteins. They contain an amino group and a carboxylic acid group, and they vary by the side chain attached to their alpha carbon.

Nitrogenous Waste

Waste products containing nitrogen, such as urea, ammonia, and uric acid, produced by the metabolism of proteins and nucleic acids in organisms.

Urea

A waste product formed in the liver, the final nitrogenous excretion product of protein metabolism, which is excreted in the urine.