NURS 572 EXAM 1 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
Cell membrane embedded enzyme - ANSWERS-binds at ligand binding
domain
catalytic site inside. Response is in seconds
Ligand gated ion channel - ANSWERS-a receptor that alters the flow of
ions across the plasma membrane when bound by its ligand
Gene protein coupled receptor - ANSWERS-activates the effector when
turned on
Transcription factors (in cell) - ANSWERS-responses are delayed, must
be lipid soluble. regulates protein synthesis
Receptors - ANSWERS-special chemicals in the body that most drugs
interact with to produce effects; any functional macromolecule in a cell
to which a drug binds to produce its effects; generally reserved for the
body's own receptors, can include enzymes, hormones, ribosomes, etc
Receptor attributes - ANSWERS-Normal points of control of
physiologic processes
END OF
PAGE
1
, NURS 572 EXAM 1 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
Regulated by molecules supplied by the body
Drugs can only mimic or block
Drugs cannot give cells new functions
Drugs produce therapeutic effects by helping body help itself
Theory: make drugs to alter the rate of any biologic process for which
receptors exist
Agonist - ANSWERS-mimic endogenous regulatory molecules
Activate receptors
Have affinity and high intrinsic activity
Can make the process go faster or slower
Antagonists - ANSWERS-block endogenous regulatory molecules
Prevent receptor activation by agonist
END OF
PAGE
2
QUESTIONS AND
ANSWERS 2026 - 2027
Cell membrane embedded enzyme - ANSWERS-binds at ligand binding
domain
catalytic site inside. Response is in seconds
Ligand gated ion channel - ANSWERS-a receptor that alters the flow of
ions across the plasma membrane when bound by its ligand
Gene protein coupled receptor - ANSWERS-activates the effector when
turned on
Transcription factors (in cell) - ANSWERS-responses are delayed, must
be lipid soluble. regulates protein synthesis
Receptors - ANSWERS-special chemicals in the body that most drugs
interact with to produce effects; any functional macromolecule in a cell
to which a drug binds to produce its effects; generally reserved for the
body's own receptors, can include enzymes, hormones, ribosomes, etc
Receptor attributes - ANSWERS-Normal points of control of
physiologic processes
END OF
PAGE
1
, NURS 572 EXAM 1 LATEST
QUESTIONS AND
ANSWERS 2026 - 2027
Regulated by molecules supplied by the body
Drugs can only mimic or block
Drugs cannot give cells new functions
Drugs produce therapeutic effects by helping body help itself
Theory: make drugs to alter the rate of any biologic process for which
receptors exist
Agonist - ANSWERS-mimic endogenous regulatory molecules
Activate receptors
Have affinity and high intrinsic activity
Can make the process go faster or slower
Antagonists - ANSWERS-block endogenous regulatory molecules
Prevent receptor activation by agonist
END OF
PAGE
2
