Resting membrane potential (Principles revision)

Question 1

In the cell membrane itself charged or uncharged?

Answer 1

Uncharged

Question 2

What is Em?

Answer 2

The difference in charge between the ECF and ICF located on either sides of the cell membrane

Question 3

Is there more sodium in the ECF or ICF?

Answer 3

ECF

Question 4

Is there more pottasium in the ECF or ICF?

Answer 4

ICF

Question 5

At resting membrane potential in the cell membrane more permeable to pottasium or sodium?

Answer 5

Pottassium

Question 6

Is K+ attracted to the positively or negatively charged side of the cell membrane?

Answer 6

Negative

Question 7

Is Na+ attracted to the positively or negatively charged side of the cell membrane?

Answer 7

Negative

Question 8

In terms of concentration gradient, does K+ want to move out of or into the cell?

Answer 8

Outward

Question 9

In terms of concentration gradient, does Na+ want to move out of or into the cell?

Answer 9

Into

Question 10

In the plasma membrane permeable or impermeable to large negatively charged intracellular proteins?

Answer 10

Impermeable