1.What does the above diagram illustrate?

cbse
human-health

#1

1.What does the above diagram illustrate?
2.Name the parts labelled ‘a’ and ‘b’.
3.Name the type of cells that produce this molecule.


#2

1.A type of antibody(Immunoglobulin).
2.a=antigen binding site.
b=heavy chain.
3.B cells produce them.