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NEURON FUNCTION FINAL EXAM | 2025-2026 LATEST
UPDATED | ACTUAL EXAM QUESTIONS WITH SOLUTIONS |
100% RATED CORRECT | 100% VERFIED SOLTIONS |
ALREADY GRADED A+
what is the job of a neuron - (answer)to move an electrical signal from one place to
another in order to send sensory messages throughout the body
Which of the gated embedded proteins in Model 1 allow sodium ions ( O ) through
the membrane? - (answer)gates A, B, D and F allow sodium ions through the
membrane
Which of the gated embedded proteins in Model 1 allow potassium ions ( triangles
) through the membrane? - (answer)Gates C, E, and G allow potassium ions
through the membrane
The neuron illustrated in Model 1 has received a signal from either a sensory cell
(taste bud, skin
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cell, retinal cell, etc.) or from another neuron. What evidence do you find in
diagram 1 of the
model that indicates a signal has been received? - (answer)A signal Ligand has
bound to the ligand-gated embedded protein and the gate has opened
In diagram 2 of Model 1, gated embedded protein B has opened. Was this opening
triggered by
the arrival of a signal ligand? If no, propose an alternate stimulus that might have
triggered the
gate to open. - (answer)No, diagram 2 does not show a ligand bound to embedded
protein B. The gate may have opened because of the change in membrane potential
from the flood of ions nearby
When a signal moves down the axon of the neuron, which direction do sodium ions
move
through the voltage-gated embedded proteins? - (answer)sodium ions move into
the cell when the sodium gates are opened
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What does the movement of sodium ions across the membrane do to the membrane
potential
near the open embedded protein? - (answer)the membrane potential increases (gets
more positive) as the sodium ions move into the cell
When a signal moves through the axon of the neuron, which direction do
potassium ions
move through the voltage-gated embedded proteins? - (answer)potassium ions
move out of the cell when the potassium gates are opened
What does the movement of potassium ions across the membrane do to the
membrane potential near the open embedded protein? - (answer)the membrane
potential decreases ( gets more negative) as the potassium ions move out of the cell
when a neuron is resting the cell membrane is said to be POLARIZED - (answer)
how is the degree of polarization measured? - (answer)the degree of polarization is
measured by the cell membrane potential
NEURON FUNCTION FINAL EXAM | 2025-2026 LATEST
UPDATED | ACTUAL EXAM QUESTIONS WITH SOLUTIONS |
100% RATED CORRECT | 100% VERFIED SOLTIONS |
ALREADY GRADED A+
what is the job of a neuron - (answer)to move an electrical signal from one place to
another in order to send sensory messages throughout the body
Which of the gated embedded proteins in Model 1 allow sodium ions ( O ) through
the membrane? - (answer)gates A, B, D and F allow sodium ions through the
membrane
Which of the gated embedded proteins in Model 1 allow potassium ions ( triangles
) through the membrane? - (answer)Gates C, E, and G allow potassium ions
through the membrane
The neuron illustrated in Model 1 has received a signal from either a sensory cell
(taste bud, skin
,2|Page
cell, retinal cell, etc.) or from another neuron. What evidence do you find in
diagram 1 of the
model that indicates a signal has been received? - (answer)A signal Ligand has
bound to the ligand-gated embedded protein and the gate has opened
In diagram 2 of Model 1, gated embedded protein B has opened. Was this opening
triggered by
the arrival of a signal ligand? If no, propose an alternate stimulus that might have
triggered the
gate to open. - (answer)No, diagram 2 does not show a ligand bound to embedded
protein B. The gate may have opened because of the change in membrane potential
from the flood of ions nearby
When a signal moves down the axon of the neuron, which direction do sodium ions
move
through the voltage-gated embedded proteins? - (answer)sodium ions move into
the cell when the sodium gates are opened
, 3|Page
What does the movement of sodium ions across the membrane do to the membrane
potential
near the open embedded protein? - (answer)the membrane potential increases (gets
more positive) as the sodium ions move into the cell
When a signal moves through the axon of the neuron, which direction do
potassium ions
move through the voltage-gated embedded proteins? - (answer)potassium ions
move out of the cell when the potassium gates are opened
What does the movement of potassium ions across the membrane do to the
membrane potential near the open embedded protein? - (answer)the membrane
potential decreases ( gets more negative) as the potassium ions move out of the cell
when a neuron is resting the cell membrane is said to be POLARIZED - (answer)
how is the degree of polarization measured? - (answer)the degree of polarization is
measured by the cell membrane potential
