Opsonins are:

 # Opsonins are:

A. C3a

B. IgM

C. Carbohydrate binding proteins

D. Selectins

The correct answer is C. Carbohydrate binding proteins.

Opsonins 

• Chemicals causing opsonisation 

• They are specific carbohydrate binding proteins 

Examples of opsonins 

• C3b 

• Fc fragment of antibody or IgG 

• Some serum proteins (like fibrinogen, mannose binding lectin and C reactive protein) 

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