A feature which distinguishes ribose from deoxyribose is, the absence of an OH at the 2' carbon.
In the ribose the second carbon atom contains hydrogen atom only. Ribose is termed as the carbohydrate.
It is a simple sugar which has linear form H-. It is a monosaccharide which contains five carbon atoms.
Deoxyribose is being derived from DNA and it differs from ribose by having hydrogen atom instead of hydroxyl group which functions as a RNA splicing.
Selective permeability, made possible in cells by the phospholipid bilayer that makes up the plasma membrane, is basically monitoring and regulating what can and can't enter the cell. It is carried out by a series of membrane proteins that act as channels to polar molecules, opening to allow them in and closing to prevent their entry. This is possible because the hydrophobic tails of the phospholipid molecules repel polar molecules and so prevent their entry unless through a channel.
They are part of our immune system they help protecting your body infection,illnesses ,and syndromes etc
