Brain Cell at Rest --> Sodium Potassium Pump

Sodium Potassium Pump (Na+/K+ pump)

Goal is to produce potential energy and the pumps force ions to move from an area of low conc. to an area of high conc.

High amount of K+ on the inside

High amount of NA+ on the outside

Step 1

3 Na+ goes into the pump and binding in, which causes ADP to become ATP

Step 2

The shape changes allowing the sodium ions to leave to the Extracellular fluid

Step 3

2 K+ then bind and leave to the cytoplasm, which causes the phosphate to pop out

Step 4

The phosphate goes to the mitochondria to be put back together as ATP

Electrochemical gradient

the electrical and chemical properties across a membrane

Charge gradient

ATP

Adenosine triphosphate

ADP

Adenosine diphosphate