
Potenciales
Authored by 5xwtfn5cbs apple_user
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12th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El potencial de membrana en reposo (Em) de una neurona es, en promedio:
-40 mV
-55 mV
-70 mV
+35 mV
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El ion más permeable en reposo en la mayoría de las células excitables es:
Na+
K+
Cl-
Ca2+
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La bomba de sodio y potasio transporta:
2 Na+ hacia adentro, 3 K+ hacia afuera
3 Na+ hacia afuera, 2 K+ hacia adentro
3 K+ hacia afuera, 2 Na+ hacia adentro
2 Ca2+ hacia adentro, 3 Na+ hacia afuera
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El potencial de equilibrio electroquímico de un ión se calcula con:
Ecuación de Goldman
Ecuación de Gibbs
Ecuación de Nernst
Ley de Ohm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un aumento de la permeabilidad al Na+ en reposo causará:
Hiperpolarización
Hipopolarización
Repolarización
Ningún cambio
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de los siguientes NO se considera un tipo de potencial eléctrico celular?
Umbral
Local
Repolarizante
Acción
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La hipokalemia produce:
Hiperpolarización y menor excitabilidad
Hipopolarización y mayor excitabilidad
Inversión de polaridad
Ningún efecto sobre la membrana
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