Passive Transport (Cell Membrane): Cell transport - Mechanism: 10 Min Tutorial - Lecture 2

#cellmembrane #celltransport #Passivetransport
In this tutorial, we are explaining the process of cell transport, i.e movement of material in and out of the cell. (From Cyoplasm to extra cellular compartment and vice versa via cell membrane)
Lecture 1 (anatomy series) : we explained you about the anatomy of human cell and its structure and composition with functions.
Next up in this video, we are explaining in detail about the cell transport via passive transport.
Cell transport usually take place through the cell membrane, which is made up of phospholipids bi-layer, selective permeable plasma membrane.
consider human cells as your room and cell membrane as a wall. for the things and material to move in and out the room, you need a door and window or the light to come in and out of the room.
these door are the transport protein also called as intrinsic or channel proteins and window acts as semi permeable membrane through which only small material can be passed or transported.
The Cell transports mechanism is of 2 types.
Active transport - which needs energy in the form of ATP via ions pump and vesicular transport (we will discuss this in lecture 3)
Passive transport - which do not need energy and its simple movement across the membrane via 3 different ways.
1. Simple diffusion - Small ions and Molecules with no charge (Like oxygen and carbon di oxide and fatty acid.) can easily diffuse through the semi permeable membrane.
2. Facilitated Diffusion - Small Ions and Molecules which are charged diffuse via transport protein i.e channel and carrier proteins.
3. Osmosis - transport of solute from high concentration gradient to low concentration gradient via transport protein or semi permeable membrane.
simple sugar and carbohydrate get diffused or facilitated with the help of carrier protein.
(we tried to keep it very simple for the viewers to understand)