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WorksheetsLab Exercise 2 Neurons and voltage gated channels
Total questions: 20
Worksheet time: 11mins
Identify the voltage-gated channels of a neuron, along with its gates.
Identify the location of #1.
Cytoplasmic (plasma) membrane
Extracellular fluid
Sodium Na+
Intracellular Fluid
Identify location 2
Sodium Na+
Cytoplasmic membrane
Extracellular Fluid (ECF)
Potassium K+
Identify location 3
Sodium Na+
Potassium K+
Sodium Na+ Channel
Extracellular Fluid
Identify location 4
Cytoplasmic membrane
Sodium Na+
Potassium K+
Intracellular Fluid
Identify location 5
Sodium Na+
Activation gates
Potassium K+
Intracellular Fluid
Identify 6
activation gates
inactivation gates
Sodium Na+ Channel
Potassium K+ Channel
Identify 7
activation gate
Sodium Na+ channel
Inactivation gate
Potassium K+ Channel
location 8
potassium K+ channel
inactivation gates
activation gates
Sodium Na+ channel
Identify 9
Sodium Na+ Channel
Potassium K+ Channel
Activation gates
Inactivation gates
location 10
potassium K+
inactivation gates
Sodium Na+ Channel
activation gates
Identify the phases of the action potential
1
Hyperpolarization
repolarization
depolarization
resting state
Identify box 2
resting state
hyperpolarization
repolarization
depolarization
Identify box 3
hyperpolarization
repolarization
depolarization
resting state
identify box 4
hyperpolarization
depolarization
resting state
repolarization
These channel gates open when the cell membrane reaches the threshold voltage.
Match the channels and channel's gates, with their description and or functions. Choose all that apply
Sodium activation gates
Sodium inactivation gates
Potassium activation gates
These channel gates open when the cell membrane voltage reaches maximum depolarization.
Match the channels and channel's gates, with their description and or functions. Choose all that apply
Sodium Activation channels
Sodium inactivation channels
Potassium activation gates
At resting membrane potential, ________and _______are closed; and _________are open.
A. Sodium Activation gates
B. Sodium inactivation gates
C. Potassium activation gates
Match the channels and channel's gates, with their description and or functions. Choose all that apply
A, C, B
A, B, C
B, C, A
C, A, B
_______, These channels gates close at maximum depolarization.
Match the channels and channel's gates, with their description and or functions. Choose all that apply
Sodium Activation gates
Sodium inactivation gates
potassium activation gates
During depolarization, _______, and ______ are open; and _____are closed.
Match the channels and channel's gates, with their description and or functions. Choose all that apply
sodium activation gates, sodium inactivation gates, potassium activation gates
potassium activation gates, sodium inactivation gates, sodium activation gates
sodium inactivation gates, sodium activation gates, and Potassium activation gates
During repolarization, _______and _______ are open:_______are closed.
a. sodium activation gates
b. sodium inactivation gates
c. potassium activation gates
Match the channels and channel's gates, with their description and or functions. Choose all that apply
a, b, c
b, c, a
a, c, b
