Assignment 13, Chapter 48
Course: Biology (2)
NAME: _______________________
STUDENT #: ___________________
Please answer in English.
1) Every cell has a voltage (difference in electrical charge) across its plasma membrane
called a membrane potential. The _____________ is the membrane potential of a
neuron not sending signals.
2) Inactivated ____ channels behind the zone of depolarization prevent the action
potential from traveling backwards.
3) The nerve gas _____ inhibits acetylcholinesterase (catalyzes the breakdown of
acetylcholine), causing a buildup of acetylcholine to levels that trigger paralysis and
typically death.
4) __________ disease is associated with a lack of dopamine in the brain.
5) Gas neurotransmitter, __________, make blood vessels relax and widen.
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