Pharmacology 2 Flashcards
1
Q
Define pharmacology
A
Study of the way living systems are affected by chemical agents.
2
Q
Define a drug.
A
Any chemical agent which affects a biological system.
3
Q
Give examples of receptors.
A
Cell surface receptors Intracellular receptors Ion channels Carriers Enzymes Nucleic Acid
4
Q
Define affinity.
A
Determined by strength of chemical attraction between drug and receptor.
5
Q
Define efficacy.
A
Determined by how good the drug is at activating the receptor.
6
Q
Define an agonist.
A
Mimic normal effect of receptor.
7
Q
Define an antagonist.
A
Block normal action of receptor.
