<prompt> All of the following are false regarding classes if immunoglobulin except :IgM has maximum half-life of 23 daysIgE has least serum concentration of 0.00004 mgmlIgG has maximum sedimentation co-efficient of 19IgD has a carbohydrate concentration of 8  <response>: Highest serum half-life and serum concentration is of IgG. Least serum half-life and serum concentration is of IgE. Highest sedimentation coefficient is of IgM IgG IgM IgA IgD IgE Serum concentration 12 mgml 1.2 mgml 2 mgml 0.03 mgml 0.00004 mgml Half-life 23 d 5 d 6 d 2-8 d 1-5 d Molecular wt. 150,000 900,000 160,000 180,000 190,000 Carbohydrate 2-3 12 8 13 12 Sedimentation coeff 7 19 7 7 8 