Why do ion channels not function like open pores?
What is membrane potential?
How do K+ leak channels work? Why is the membrane potential of a resting cell negative?
What is patch clamp recording? What is one of the major insights gained from patch clamp reporting experiments?
Compare and contrast the three types of gated ion channels.
Be familiar with the different parts of a neuron.
During an action potential, what happens to the membrane potential, voltage-gated Na+ channels, Na+ ions, voltage gated K+ channels, K+ ions, and Na+-K+ ion pumps?
When an action potential reaches a synapse, what happens to the Ca2+ channels, Ca2+ ions, neurotransmitters, transmitter-gated ion channels, and the post synaptic neuron?
What effect do excitatory or inhibitory neurotransmitters have on postsynaptic cells?
What is an example of a mechanically gated ion channel?
Why do ion channels not function like open pores?
What is membrane potential?
How do K+ leak channels work? Why is the membrane potential of a resting cell negative?
What is patch clamp recording? What is one of the major insights gained from patch clamp reporting experiments?
Compare and contrast the three types of gated ion channels.
Be familiar with the different parts of a neuron.
During an action potential, what happens to the membrane potential, voltage-gated Na+ channels, Na+ ions, voltage gated K+ channels, K+ ions, and Na+-K+ ion pumps?
When an action potential reaches a synapse, what happens to the Ca2+ channels, Ca2+ ions, neurotransmitters, transmitter-gated ion channels, and the post synaptic neuron?
What effect do excitatory or inhibitory neurotransmitters have on postsynaptic cells?
What is an example of a mechanically gated ion channel?
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Which of the following statements is FALSE? (choose one)
A. | Voltage-gated sodium (Na+) channels open in the dendrites and cell body during a local, graded potential. |
B. | During repolarization, potassium ions are leaving the cell (K+ is diffusing out of the cell), and the inside of the cell becomes more negative |
C. | If someone damaged an efferent motor neuron, they could feel pain, but not respond to move away from the pain |
D. | Myelin serves as electrical insulation and increases the speed at which an action potential travels along the axon |
E. | Movement of ions can be excitatory (if sodium ligand-gated channels bind the neurotransmitter), or inhibitory (if potassium ligand-gated channels bind the neurotransmitter) |