Cell Membrane, Active Transport

[Raketoken]

240p is Full HD in Africa

[kitzayitzay]

sent here by jimmy?

[MozzzyBit3]

okay so, once ATP has turned to ADP, it basically did it's job for the sodium to move from a high concentration to a low concentration. so that part is active transport.

[keltoum3]

Iwant to telecharge the védéo! how?

[MrBarrabus]

When the potassium enters the cell and "the phosphate is released", what the heck happened to the phosphate? Also, why does a simple phosphate change the shape of the protein to begin with? Is this like asking why is water wet or whether the chicken or the egg came first?

[manicmidwife]

I could be wrong but the initial phosphate release is from ATP and that ATP molecule becomes ADP. That phosphate it then free to rebond with ADP to make ATP. With the protien don't forget that enzymes won't work until they bind with a co-factor (often a vitamin or a mineral) - like a lock and key effect. You wouldn't really want that protein to be 'open' all the time as things would leak freely in and out and that would be detrimental to the cell.

[Savagelifex]

this is kicking my ass

[nadiasad]

what is the process of active transport? not the definition, teh proces....

[cheldexox]

ur all nerds.

[xTPTxOCELOT]

no, your just dum.

[GerardIsTheWay]

Learn to spell, please.

[philoupke]

@xTPTxOCELOT and/or uneducated

[Themychalo]

@cheldexox

[DylanEverkiller]

Bitch'n

[paige5peach]

To be people down there talking about ATPase...ATPase is a class of enzymes that break down ATP into ADP and a phosphate. The energy that is released from this drives other chemicals reactions, such as the one we just saw.

[cristofolon]

thanks paige5peach i was wondering what that was for quite a while you explained it very nicely, better than my teacher...

[0503903936]

thanks alot

saudi student

[nicolevtwh]

good explanation

[jia203]

Based on what I remember from physiology, the NaK ATPase creates both a voltage and a concentration gradient, both of which drive cell processes. I think that cells with just the NaK pump working will have a negative electrical potential inside relative to the outside.

[RDALONE]

this is a gud example of Primary active transport any other video of H+ ion concentration through primary active transport plxx post it

[Ipikop]

The enzyme is Na-K-ATPase

[Rosenberg130n]

Na = Sodium

K = Potassium

ATPase = ATP

[subzi]

ATPase is not ATP it is a protein that uses ATP

[paige5peach]

ATPase is an enzyme that breaks down ATP

[xicamala]

@Rosenberg130n ATPase is a enzyme that brakes ATP into ADP leavin the lonely phosphate

[Arifer95]

???

[Francesco91Malta]

Actually this is the Sodium-Patassium Pump.... which in the long run will create an imbalance in charge i think

[CyberaxIzh]

Not in charge, Na+ and K+ ions are both positively charged.

However, a concentration gradient is created - cells contain a lot of potassium (but little sodium) and extracellular space contains a lot of sodium and little potassium.

This gradient can drive important processes.