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Home Q & A Board Biology-Related Homework Help General Biology
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boogerti boogerti
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10 years ago
The diagram below shows the five main transport proteins that control the distribution of Na+ and K+ ions across the plasma membrane of an axon. Assume that the membrane is at resting potential---the membrane potential of the axon remains constant at about -70 mV.
Drag the arrows onto the diagram to show the direction of Na+ (gray arrows) and K+ (red arrows) movement through each transport protein at resting potential. If no ions move through a transport protein at resting potential, leave that target blank.
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#1
Staff Member
Educator
10 years ago
a) Na out
b) k in
c) Na out k in
d) k out
e) Na in

Try this.
rach.mow,  bellamy2214
Mastering in Nutritional Biology
Tralalalala Slight Smile
boogerti Author
wrote...
#2
10 years ago
a) No ion passage in the voltage gated Na+ channel
b) No ion passage in the voltage gated K+ channel
c) Na+ outside the cell and K+ inside the cell in the sodium-potassium pump
d) K+ outside the cell in the non gated K+ channel
e) Na+ inside the cell  in the non gated Na+ channel
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#3
10 years ago
At resting potential, the membrane potential remains constant at about -70 mV. This means that there is no net movement of ions across the membrane. Assuming that Na+ and K+ are the only ions that move at resting potential, Na+ movement out of the cell through the sodium-potassium pump is balanced by an influx of Na+ through the non-gated Na+ channels. Conversely, K+ movement into the cell through the sodium-potassium pump is balanced by an outward movement of K+ through the non-gated K+ channels
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#4
9 years ago
That is awesome! Thanks Slight Smile
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#5
9 years ago
thanks
Answer verified by a subject expert
heavenangeiuvheavenangeiuv
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#6
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9 years ago
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#7
9 years ago
Thank you,
 
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