Transport of Na+ from a place of low concentration to a place of higher concentration
Passive transport is an awesome methodology for moving particles into or out of a cell. It's shabby, it's simple, and all the cell needs to do is stay there and let the particles diffuse in. But...it additionally doesn't work in each circumstance. For example, assume the sugar glucose is more concentrated a cell than outside. If the cell needs more sugar in to meet its metabolic needs, how might it get that sugar in?
Here, the cell can't import glucose with the expectation of complimentary utilizing diffusion, on the grounds that the regular inclination of the glucose will be to diffuse out as opposed to streaming in. Rather, the cell must get more glucose atoms through active transport. In active transport, dissimilar to passive transport, the cell consumes vitality (for instance, as energy) to move a substance against its concentration slope.