00:01
Okay, this question says, a sodium -potassium pump has a transmembrane transported protein that uses energy to transport sodium and potassium ions through the membrane from a region of low concentration to a region of high concentration.
00:13
It means up their concentration gradients.
00:15
It says this maintains a high concentration of sodium outside the cell and a high concentration of potassium inside the cell.
00:21
The continuous active transport can be broken into four steps.
00:25
Put the sodium -potassium pump into the correct order.
00:29
So you have here many pictures or figures and you have to state each of these statements here.
00:42
So remember that sodium or the sodium -potassium atpase pump moves two potassium ions in exchange by three sodium ions.
00:54
So as you can see here, um, there are three, one, two, and three, uh, sodium ions getting attached to this pump and also, um, atp is gonna bind here.
01:07
Okay, so you have that for number one, you're gonna get atp and three sodium, uh, and three sodium ions bind to the cytoplasmic surface of the sodium -potassium atpase pump.
01:18
This is a cytoplasmic surface and this is the extracellular, okay? so this is number one.
01:22
Then for number two, as you can see here, the sodium molecules are expelled or are expelled out of the, out of the cell...