CH4: Chemistry of Behavior

Question 1

exocytosis

Answer 1

a cellular process that results in the release of a substance into the extracellular space

Question 2

neurotransmitter receptor

Answer 2

a specialized protein that is embedded in the cell membrane, allowing it to selectively sense and react to molecules of the corresponding neurotransmitter

Question 3

reuptake

Answer 3

the reabsorption of molecules of neurotransmitter by neurons that released them, thereby ending the signaling activity of the transmitter molecules. Reuptake of transmitters relies on special proteins called transporters, complex structures that bind molecules of the transmitter and conduct them back inside the presynaptic terminals

Question 4

ionotropic receptor

Answer 4

also called ligand-gated ion channel. a receptor protein containing an ion channel that opens when the receptor is bound by an agonist

Question 5

metabotropic receptor

Answer 5

a receptor protein that does not contain ion channels but may, when activated, use a second messenger system to open nearby ion channels or to produce other cellular effects