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16 Feb 2019
Q1. Both neurons and epithelial cells can sometimes be joined to neighboring cells via gap junctions
a. TRUE
b. FALSE
Q2. Which of the following transport proteins is important for maintaining the electrical gradient across the plasma membrane of a neuron?
a. Facilitated transport proteins
b. Voltage-gated Na+ channel
c. Na+/K+ ATPase
d. Na+/glucose symporter SGLT1
Q3. During an action potential, Na+ influx______ the membrane potential, and K+ efflux subsequently ______ the membrane potential.
a. Depolarizes; repolarizes
b. Hyperpolarizes; depolarizes
c. Repolarizes; depolarizes
d. Polarizes; hyperpolarizes
Q1. Both neurons and epithelial cells can sometimes be joined to neighboring cells via gap junctions
a. TRUE
b. FALSE
Q2. Which of the following transport proteins is important for maintaining the electrical gradient across the plasma membrane of a neuron?
a. Facilitated transport proteins
b. Voltage-gated Na+ channel
c. Na+/K+ ATPase
d. Na+/glucose symporter SGLT1
Q3. During an action potential, Na+ influx______ the membrane potential, and K+ efflux subsequently ______ the membrane potential.
a. Depolarizes; repolarizes
b. Hyperpolarizes; depolarizes
c. Repolarizes; depolarizes
d. Polarizes; hyperpolarizes
Irving HeathcoteLv2
16 Feb 2019