A proton pump is an integral membrane protein that is capable of moving protons across a biological membrane.

So while it is true that the normal stoichiometry of the pump does have a slight negative influence on the membrane potential that's just the membrane potential, the voltage across the membrane the imbalance in the pump stoichiometry is not the main reason for the large negative membrane potential of the cell.

Now that energy is used to pump protons across the cristae across the inner membrane of the mitochondria.

100 ml of a water sample is drawn through a membrane filter (0.45 µm pore size) through the use of a vacuum pump.

For example, to cope with toxic drugs, a cancer cell may increase its rate of DNA repair, or actively pump the drug out across the cell membrane.

And the whole time it entered lower and lower energy states, that energy was being used to pump hydrogen across this membrane from the stroma to lumen.

Pump

Pump.

And then you have that little basement membrane like a thin line of membrane called the basement membrane

That's the membrane.

It has an outer membrane and an inner membrane just like that.

In the electron transport chain, as electrons went from a high potential, a high energy state, to a low energy state, that energy was used to pump hydrogens through a membrane.

Water Jet Pump

Civil Horizontal Pump

Civil Vertical Pump

Oh,the pump!

That oil pump?

All right. Pump.

That's its outer membrane.

The membrane is translucent.

That's its outer membrane.

These are membrane bound.

Here at Penn Medical School, we have a nice teaching program that stimulates the ion fluxes across a generic cell, So the ion flux is just the movement of the ions across the membrane including that due to the sodium potassium pump and that which arises from the resting permeabilities of the membrane.

The thylakoid has a membrane.

It has an outer membrane.

It has an inner membrane.

Let me draw the membrane.

Kovac, man the pump!

Look Virginia, this pump...

It's a brandnew pump!

And in that case it was in the mitochondria, here the membrane is the thylakoid membrane.

And so basically what you're going to have is this membrane. So we've got a membrane

And then this side is normally referred to the basal lateral side, or this membrane, if you view this as a membrane, this would be the basolateral membrane.

The value for the pump efficiency, formula_21, may be stated for the pump itself or as a combined efficiency of the pump and motor system.

Offshore Membrane Enclosures for Growing Algae.

And this membrane is especially important.

This is a phospobilipid layer membrane.

Fuel pump, 3 m3 h

Fuel pump, 10 m3 h

Fuel pump, 25 m3 h

Fuel pump, 60 m3 h

And this is the pump.

We pump into the aorta.

Remember, Bruno, pump and bell.

He's a gas pump jockey.