You discover a new cell type that contains measurable amounts of silver ions (Ag

Question

You discover a new cell type that contains measurable amounts of silver ions (Ag+) in it. You find that the concentration of Ag+ inside the cell is still 10 times lower than the concentration outside. Calculate the amount of membrane potential that results from this amount of silver. Use the simplified form of the Nerst equation, V = 62 log (Co/Ci)

what is the voltage difference across a membrane due to a slight excess of positive ions on one side and of negative ions on the other is a [x]. This volatage difference is typically -60mV inside an animal cell, relative to the outside fluid

Explanation / Answer

V = 62 log (Co/Ci) ,

V = -60 , co =X , C inside =10 , inserting in the equation ,

-60 = 62log [X/10]

-60*10 = 62 log X

X = 62 log 600 = 172.2 mv

the memberane potential of the silver is 172.2 mv ,assuming the amount of silver inside the cell is 10

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.