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Biotechnology and Biomedical Engineering
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Neuron Simulation Virtual Lab (pilot)
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Effects of pharmacological blockers on action potential
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Effects of pharmacological blockers on action potential
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Theory
Procedure
Self Evaluation
Simulator
Assignment
Reference
Feedback
1)
What effect would treating an axon with TTX have on an action potential?
Action potential observed with high amplitude
Action potential observed with low amplitude
Action potential not observed
None
2)
How would TEA affect the action potential?
No effect on action potential
It would become shorter with more delay
It would be more wider
It would be longer and would not have an undershoot.
3)
Why does TTX does not have effect on puffer fish?
Because puffer fish sodium channel is insensitive to TTX
Amino acid sequence of sodium channel is different
Both
None
4)
Drug X, when applied to a nerve axon, results in both a gradual decrease in the amplitude of individual action potentials and a depolarization of the resting potential, both of which develop over a period of several hours. The drug is most likely:
Blocking the voltage-dependent Na+ permeability
Blocking the voltage-dependent K+ permeability
Blocking the sodium-potassium pump
Blocking the process of sodium inactivation
5)
Tetraethylammonium structure is:
Quartenary
Tertiary
Secondary
None
Cite this Simulator:
vlab.amrita.edu,. (2012). Effects of pharmacological blockers on action potential. Retrieved 17 February 2025, from vlab.amrita.edu/?sub=3&brch=212&sim=1310&cnt=3
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