Packet 7: Bonus 20
A protein that allows an ion of this element to pass through is inhibited by tetrodotoxin and lidocaine. For 10 points each:
[10e] Name this element whose cation has an equilibrium potential of about positive 60 millivolts for most neurons. A cation of this element is exchanged for potassium by a pump that maintains the resting potential.
ANSWER: sodium [or Na or Na+]
[10h] In contrast with lidocaine, this general anesthetic, widely used for induction of anesthesia, is a GABA-A (“GAB-uh A”) receptor agonist. This general anesthetic is commonly referred to as “milk of amnesia.”
ANSWER: propofol [or Diprivan]
[10m] Sodium thiopental is a member of this class of sedatives, which allosterically open the chloride channel in GABA-A receptors. Unlike benzodiazepines, they increase channel opening duration.
ANSWER: barbiturates
<Berkeley A, Biology> | G. Prelims 7 - Georgia Tech A + Berkeley A + Bruin + Georgetown
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