Chemical composition of Mycobacterium tuberculosis

i)                    Mykol – This is responsible for acid fast staining .

ii)                  Lipoid –

(a)    Glyceroid

(b)    Phospatids

(c)    Wax

iii)                Polysaccharides -  These are responsible for necrosis caseation and tubercle formation .

iv)                Protein – this is responsible for immunity and allergy .