00:01
You want to answer this question, let's talk about passive transport.
00:03
Imagine this is your cell.
00:06
Okay.
00:07
The lipid membrane or this membrane, this cell membrane, is a semi -permeable barrier that is going to allow the movement of lipid soluble substances, also small substances, and also poorly charged molecules.
00:24
It means ions are not going to be able to cross the cell membrane directly.
00:28
In this case, in order for these molecules to move, directly across a cell memory, you are going to acquire, first you are not going to require atp, okay? you are not going to require transporters neither.
00:42
You are going to acquire a gradient, a concentration gradient.
00:46
It means, for example, if water molecules or, or oxygen molecules are in higher concentrations here, in lower concentrations of oxygen here, then oxygen is going to be moved in this direction.
01:03
Option, well, the question says, which is the following statements regarding passive transport is false.
01:08
Option a says all passive transfer relies on concentration gradient as a driving force and this is true, okay? because it is not going to use atp, it is going to rely on concentration gradient...