<prompt> C-Carbohydrate in Streptococcus hemolyticus is important for:Lancefield classificationPhagocytic inhibitionToxin productionHaemolysis  <response>: Ans. is a i.e Lancefield classification Hemolytic Streptococci were classified by Lancefield, serologically into groups based on the nature of carbohydrate C antigen on the cell wallThese are known as Lancefield groups. Twenty of these have been classified from A-V without I and J.The other component of the streptococcal cell wall that are antigenic areM-Protein -It is the major virulence factor for the group A streptococcus. It inhibitsActivation of complementsPhagocytosis of the organism.Group A Streptococcus are further classified on the basis of M-protein. approx. 80 serotypes based on M proteinT -Protein - No relation to virulenceR -Protein - No relation to virulence. 