Question

How does the movement of substances take place in to and out of the cell?

Answer 1

There are three different ways to this:-
1)BY DIFFUSION - Movement of particles from their higher concentration to their lower concentration . Cells do exocytosis and endocytosis process
2)BY FACILITATED DIFFUSION - By the use of carrier proteins. These facilitate the movement of the molecules which cannot move in or out by simple diffusion.These molecules provide for the molecular movement. These movements do not require the use of any type of energy in any form.
3)BY ACTIVE TRANSPORT- This type of movement is mainly used to transport molecules across their gradient . In this type of transport ATPs are used .