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Chapter 3 The Neuronal Membrane at Rest
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Chapter 3 The Neuronal Membrane at Rest
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Chapter 3 The Neuronal Membrane at Rest1. A simple reflex requires the nervous system to perform three functions. Two of these
functions are to collect and distribute information. What is the third function? Choose the
correct option.
A) Disintegrate
information
B) Integrate information
C) Disperse information
D) Translate
information
2. What is resting membrane potential? Choose the correct option.
A) Difference in electrical charge across the membrane at
rest
B) Generation and conduction of action potential at
rest
C) Positive charge of the membrane at
rest
D) Isolation of the cytosol from extracellular
fluid
3. What is capacitance? Choose the correct
option.
A) Electrical potential
difference
B) Storage of electric
charge
C) Voltage across neuronal
membrane
D) Migration of electric
charge
4. Which of the following are the major charge carriers involved in the conduction
of electricity in neurons? Choose the correct option.
, A) Polar bonds
B) Phospholipid
bilayers
C) Ions
D) Ionic bonds
5. How do the lipids of the neuronal membrane contribute to the neuronal
membrane potential? Choose the correct option.
A) These lipids encourage chemical interactions with
water.
B) These lipids catalyze chemical
reactions.
C) These lipids integrate cytosol of neuron with extracellular
fluid. D) These lipids form a barrier to water-soluble ions and
water.
6. Which factor other than the ionic concentration gradient determines the
equilibrium potential for an ion? Choose the correct option.
A) Selective ionic
permeability
B) Sodium potassium
pump
C) Electrical
resistance
D) Electrical
conductance
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