Turn on thread page Beta
    • Thread Starter
    Offline

    10
    ReputationRep:
    In their resting state, all body cells exhibit a resting membrane potential (RMP). The main determinant of the RMP is the :

    A Amount of intracellular protein anions
    B Membrane’s permeability and concentration gradient for potassium ions
    C High membrane permeability to sodium ions compared to potassium ions
    D Activity of the antiport transport, the only mechanism by which intracellular potassium can cross the membrane
    E Amount of sodium ions pumped out of the cell

    I'm stuck between B and E, help?
    Offline

    10
    ReputationRep:
    (Original post by qwerty123A)
    In their resting state, all body cells exhibit a resting membrane potential (RMP). The main determinant of the RMP is the :

    A Amount of intracellular protein anions
    B Membrane’s permeability and concentration gradient for potassium ions
    C High membrane permeability to sodium ions compared to potassium ions
    D Activity of the antiport transport, the only mechanism by which intracellular potassium can cross the membrane
    E Amount of sodium ions pumped out of the cell

    I'm stuck between B and E, help?
    It's B, a cell's resting potential is usually around about the value of the membrane potential for potassium (found using the Nernst equation or some **** like that).
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: January 7, 2017

1,050

students online now

800,000+

Exam discussions

Find your exam discussion here

Poll
Should predicted grades be removed from the uni application process

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.