Exotoxins are -: (A) Lipopolysaccharide in nature, (B) Produced by gram -ve bacilli, (C) Highly antigenic, (D) Very stable and resistant to chemical agents
Answer is C. Exotoxins are protein in nature
Produced by both gram (+) ve and gram (-) ve bacteria
They are highly antigenic
They are sensitive to chemical agents like formaldehyde and can be toxoided.