Role of neurotransmission
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
Related questions
Question
Role of neurotransmission.
Transcribed Image Text:When do K+ ion channels BEGIN to open?
А.
As soon as depolarization occurs.
В.
At the peak of the action potential.
C. When Na+ ion channels close.
D. During the refractory period.
What is the purpose of the action potential in neurotransmission?
A.
To carry materials between the axon hillock and the synapse.
В.
To depolarize the post-synaptic cell.
С.
To open Ca2+ ion channels.
D.
To alter transcription in the post-synaptic cell.
E. To directly release neurotransmitters.
Transcribed Image Text:Action Potentials are:
A.
Both Necessary and Sufficient for neurotransmission.
В.
Sufficient but not Necessary for neurotransmission.
c. Necessary but not Sufficient for neurotransmission.
D.
Neither Necessary nor Sufficient for neurotransmission.
Calcium influx is:
A. Necessary but not Sufficient for neurotransmission.
В.
Neither Necessary nor Sufficient for neurotransmission.
C.
Both Necessary and Sufficient for neurotransmission.
D. Sufficient but not Necessary for neurotransmission.
What maintains the Na+/K+ ion concentrations in a neuron at rest?
A. The voltage-gated Na+ ion channels.
В.
The K+ ion channels.
С.
Ca2+
D.
The Na+/K+ ion pump.
Е.
CI-
Expert Solution
Step 1
When do K+ ions channels begins to open
ans- aa soon as depolarization occur
2. What is the purpose of action potential in neurotransmitter
Ans-To carry material between the axon hillock and the synapses
3. Action potential are
Ans- Both necessary and sufficient for Neurotransmissiom
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