Methadone is a drug given to treat heroin addicts. It works by binding to the same receptors as heroin but with greater affinity, thereby preventing heroin from binding. This is an example of
A. competition.
B. down-regulation.
C. signal transduction.
D. agonistic behavior.
E. up-regulation.
A
You might also like to view...
The oldest definite primates, adapids and omomyids, are classified as early __________.
A) cercopithecines B) hominins C) prosimians D) anthropoids
Which of the labeled structures in the diagram senses touch, pressure and slow vibrations?
a) A b) B c) C d) D e) E
The three major groups of proteins, in order from most abundant to least abundant are the ________, _________, and ____________
Fill in the blank(s) with correct word
Individuals who have had a night of heavy drinking often have trouble remembering exactly what happened. This lapse in memory is the primary result of ethanol
a. initiating inhibitory cAMP pathways involved in memory storage. b. slowing the transfer of short term memory events into long term memory storage. c. slowing the release of calcium in presynaptic neurons. d. blocking binding to NMDA receptors. e. blocking LTP pathways.