Which of the following causes docking to occur in the neuron? a. Na 1+ b. Ca...
Which of the following causes docking to occur in the neuron?
a. Na 1+
b. Ca
c. Ca2+
d. Na
Homework Answers
Answer
Ca2+ causes docking to occur in the
neuron.
First influx of calcium ions allows the vesicle to dock. Docking is the process during which the vesicle and pre-synaptic membrane line up in a fusion-ready state.
Only ions can enter neuron. So b and d are not the answers.
Na+ is involved in voltage gated channels but not in docking.
Add Answer to:
Which of the following causes docking to occur in the
neuron?
a. Na 1+
b. Ca...
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Question 1 2 pts Phosphodiesterase hydrolyzes CGMP, which causes Ca++/Na+ channels to Question 2 2 pts ces All of the following except will decrease the rate of Ca++/Na+ channel closings as luminance becomes more intense (i.e. brighter). A) Disinhibition of Rhodopsin kinase B) Decrease in intracellular Ca++ concentration C) Increase affinity of cGMP with Ca++/Na+ channels D) Inhibition of Guanylate cyclase
Two neurons, A and B, synapse onto a third neuron, C. If neurotransmitter from neuron A...
Two neurons, A and B, synapse onto a third neuron, C. If neurotransmitter from neuron A opens ligand-gated channels permeable to sodium (Na) ions, and neurotransmitter from neuron B opens ligand-gated chloride (CI") channels, which of the following statements is true? Hint: Drawing a simple diagram may help visualize this scenario. Select one: a. An action potential in neuron A causes a depolarizing EPSP in neuron B. b. An action potential in neuron B causes a depolarizing EPSP in neuron...
21) Nerve depolarization occurs whern a) Na channels open and Na+ rushes into the neuron b)...
21) Nerve depolarization occurs whern a) Na channels open and Na+ rushes into the neuron b) Na+ channels open and Na+ rushes out of the neuron c) K+ channels open and K+ rushes into the neuron d) K+ channels open and K+ rushes out of the neuron 22) Nerve repolarization occurs when: a) b) c) d) Na+ channels open and Na+ rushes into the neuron Na+ channels open and Na+ rushes out of the neuron K+ channels open and K+...
Action Potential Action Potential (AP) arises in presynaptic neuron Travels to Causes End of presynaptic neuron...
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choices for A: Na+/K+ pumps, voltage gated K+ channels, voltage gated Ca+ channels, voltage gated Na+...
choices for A: Na+/K+ pumps, voltage gated K+ channels,
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choices for C: Na+/K+ pumps, voltage gated K+ channels,
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voltage gated Ca+ channels, voltage gated Na+ channels
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Order the following events that occur in a neuron in response to a stimulus Sodium Potassium...
Order the following events that occur in a neuron in response
to a stimulus
Sodium Potassium Pumps and Potassium Leak Channels re-establish the resting potential Voltage Gated Potassium channels close The inside of the cell becomes more negative than the original resting potential V Voltage Gated Sodium channels open Sodium ions rush into the cell The inside of the cell becomes temporarily positive Votage Cated Potatalum channels open which causes potassium to flood out of the cell
For the following atoms; K, Ca, Na, and Cl
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11. During an action potential A. Na+ efflux causes depolarization. B. K+ influx causes repolarization. C....
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This is for my Human Physiology class. confused. please help Neuron A creates IPSPs in Neuron...
This is for my Human Physiology class. confused. please help
Neuron A creates IPSPs in Neuron B. Neuron C forms a facilitative axo-axonic synapse on Neuron B. Neuron B causes EPSPs in Neuron D. Which of the below is most likely to promote an action potential in Neuron D? Select one: a drug that blocks active reuptake of neurotransmitter into Neuron A a drug that stimulates autoreceptors on Neuron C a drug that breaks apart synaptic vesicles within Neuron A...
Question 1 2 pts Phosphodiesterase hydrolyzes CGMP, which causes Ca++/Na+ channels to Question 2 2 pts ces All of the following except will decrease the rate of Ca++/Na+ channel closings as luminance becomes more intense (i.e. brighter). A) Disinhibition of Rhodopsin kinase B) Decrease in intracellular Ca++ concentration C) Increase affinity of cGMP with Ca++/Na+ channels D) Inhibition of Guanylate cyclase
Two neurons, A and B, synapse onto a third neuron, C. If neurotransmitter from neuron A opens ligand-gated channels permeable to sodium (Na) ions, and neurotransmitter from neuron B opens ligand-gated chloride (CI") channels, which of the following statements is true? Hint: Drawing a simple diagram may help visualize this scenario. Select one: a. An action potential in neuron A causes a depolarizing EPSP in neuron B. b. An action potential in neuron B causes a depolarizing EPSP in neuron...
21) Nerve depolarization occurs whern a) Na channels open and Na+ rushes into the neuron b) Na+ channels open and Na+ rushes out of the neuron c) K+ channels open and K+ rushes into the neuron d) K+ channels open and K+ rushes out of the neuron 22) Nerve repolarization occurs when: a) b) c) d) Na+ channels open and Na+ rushes into the neuron Na+ channels open and Na+ rushes out of the neuron K+ channels open and K+...
Action Potential Action Potential (AP) arises in presynaptic neuron Travels to Causes End of presynaptic neuron Leads to 2 Located in Excitatory Postsynaptic Potential begins at 6 Cl-gates open I s When Causing Depolarization to +30mV next opening 10 Nonmyelinated axons Myelinated axons Current spreads through each segment Current spreads by---- 11 Action Potential Word Bank ŠMU Auso Neurotransmitters bind to receptors K+ gates Ca++ gates open Hyperpolarization Saltatory Release of Neurotransmitters Postsynaptic neuron Repolarization -55mV Na+ gates open Inhibitory...
choices for A: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
choices for B: bidirectionally, unidirectionally
choices for C: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
choices for D: Na+/K+ pumps, voltage gated K+ channels,
voltage gated Ca+ channels, voltage gated Na+ channels
Consider this graph illustrating the generation of an action potential across the plasma membrane of a stimulated neuron. +40 ACTION POTENTIAL plasma membrane potential...
Order the following events that occur in a neuron in response
to a stimulus
Sodium Potassium Pumps and Potassium Leak Channels re-establish the resting potential Voltage Gated Potassium channels close The inside of the cell becomes more negative than the original resting potential V Voltage Gated Sodium channels open Sodium ions rush into the cell The inside of the cell becomes temporarily positive Votage Cated Potatalum channels open which causes potassium to flood out of the cell
11. During an action potential A. Na+ efflux causes depolarization. B. K+ influx causes repolarization. C. Na+ influx causes depolarization. D. K+ influx causes
This is for my Human Physiology class. confused. please help
Neuron A creates IPSPs in Neuron B. Neuron C forms a facilitative axo-axonic synapse on Neuron B. Neuron B causes EPSPs in Neuron D. Which of the below is most likely to promote an action potential in Neuron D? Select one: a drug that blocks active reuptake of neurotransmitter into Neuron A a drug that stimulates autoreceptors on Neuron C a drug that breaks apart synaptic vesicles within Neuron A...
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