2 Quick Que.

[Lubdub222]

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The amplitude of an action potential can be increased most easily by increasing whcih of the following concentrations?

a. Intracellular Na
b. Extracellular Na
c. Intracellular Cl
d. Intracellular K
e. Extracellular K

Answer: B
Why not A? Shouldnt we increase the Intracellular Na to get a higher potential across the membrane?


2. The clearance rate for a substance that is completely removed from the blood during one pass through the kidney is equal to which of the following?

a. Renal plasma flow
b. GFR

Answer: A
Why not GFR?

Thank you.

 

[Bugab00]

Increased EC Na will allow more sodium to enter the cell once sodium channels open. This will allow for a higher amplitude (more Na in the cell will make it become even more positive).

 

[Momani]

please help with this question
which race has least incidence for oral cancer
thanks

 

[de297]

The amplitude of an action potential can be increased most easily by increasing whcih of the following concentrations?

a. Intracellular Na
b. Extracellular Na
c. Intracellular Cl
d. Intracellular K
e. Extracellular K

Answer: B
Why not A? Shouldnt we increase the Intracellular Na to get a higher potential across the membrane?


2. The clearance rate for a substance that is completely removed from the blood during one pass through the kidney is equal to which of the following?

a. Renal plasma flow
b. GFR

Answer: A
Why not GFR?

Thank you.

actively secreted substances cannot measure gfr.only renal plasma flow can be measured.
the above q mentions a substance that is completely removed,in other words actvely secreted.so the answer is renal plasma flow

 

[dreamdental]

actively secreted substances cannot measure gfr.only renal plasma flow can be measured.
the above q mentions a substance that is completely removed,in other words actvely secreted.so the answer is renal plasma flow

good explanation

 

[dreamdental]

Increased EC Na will allow more sodium to enter the cell once sodium channels open. This will allow for a higher amplitude (more Na in the cell will make it become even more positive).

if we increase intracellular sodium will not increase the amplitude?