Which of the following describes how facilitated diffusion...

Which of the following describes how facilitated diffusion is powered? The sodium-potassium pump powers facilitated diffusion. OATP is required directly Facilitated diffusion is "free of cost." Energy is required to do the work of establishing and maintaining a concentration gradient. Facilitated diffusion is powered by endocytosis.

Transcript

00:01 Okay, i want to answer this question, we have to talk about facilitated diffusion.

00:03 If this is your cell membrane, some substances are, or molecules are going to be able to diffuse the cell membrane directly.

00:10 Okay, for example, those molecules that are lipid soluble, those that are small or poorly charged, they are going to be able to diffuse the cell membrane directly.

00:27 Okay, so they are not going to require any transporter.

00:29 But there are some other molecules that are not.

00:32 Going to be lip insoluble or that are going to be big or are going to be heavily charged like i .o.

00:38 For example and they are not going to be able to cross the same memory directly like in this case.

00:43 So in this case they are going to acquire some help specifically porting transporters.

00:51 Okay.

00:52 And by porting transporters, these substances that are not lipid solvable or that are big or that are heavily charged are going to be able to cross a cell memory.

01:00 Okay.

01:01 This is like the only difference between them because also because then both of them are going to be able to move a across cell membrane down the concentration gradient.

01:11 It means they are not going to use atp.

01:14 Okay.

01:14 They are only going to use the concentration gradient.

01:17 It means if glucose is higher here, for example, and it is lower here, then glucose is going to move in this direction.

01:25 But if glucose is higher here and it is lower here, then glucose is going to move in this direction.

01:32 Okay, and the same for this case...

Question

Please give Ace some feedback