The 2 is the subscript for H symbolises the presence of 2 Hydrogen atoms.
A carbon structure is visually a highly disordered structure.
It is for this reason that it lacks structural integrity .
A carbon structure forms at the edges or is the residue of other elemental compounds.
The disorder of this structure allows it to have many available bonds and and is responsible for building more complex carbon based molecules.
A structure which is made by molecules is called substance
In cytoplasm protein formation takes place and the site of protein syntheis is RIBOSOMES