Membrane Transporters Flashcards Preview

M2M Unit III > Membrane Transporters > Flashcards

Flashcards in Membrane Transporters Deck (10):
1

Na+ is constantly ____, trying to get to equilibrium.

leaking into the cell

2

What is equilibrium for Na+?

getting Vm to equal E(Na)

3

When the ______ are equal and opposite, Vm doesn't change.

Na+ and K+ currents

4

When the Na+ and K+ currents are equal and opposite, _____.

Vm doesn't change

5

___ is constantly leaking into the cell, trying to get to equilibrium.

Na+

5

A cell with many more _____ than Na+ channels will have a membrane potential close to ___.

K+channels; E(K)

8

A cell with many more Na channels than K+ channels will have a membrane potential close to ____.

E(Na)

8

What is the value of E(K+)?

-90mV

9

When the Na+ and K+ currents are ____ and _____, Vm doesn't change.

equal; opposite

10

What is the value of E(Na)?

60mV