12. Which of the following explanation is FALSE about " antibodies"? a. IgG is found in tissues and serum, it enhances o

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12 Which Of The Following Explanation Is False About Antibodies A Igg Is Found In Tissues And Serum It Enhances O 1 (50.66 KiB) Viewed 13 times

12. Which of the following explanation is FALSE about " antibodies"? a. IgG is found in tissues and serum, it enhances opsonisation by coating the organisms, it can cross placenta and it has four subclasses b. IgA crosses placenta and binds to the complement for opsonisation. C. IgM is the largest immunglobulin, it fixes the complement. d. IgD is found on the surface of B lymphocytes. e. IgE mediates the release of histamines. 13. Which of the following biochemical test must be primarily performed to differentiate an aerobic gram - positive cocci grown in culture, to the "genus" level? a. Coagulase test b. Catalase test c. Novobiocin sensitivity test d. Optochin sensitivity test e. Bile dissolution test 14. Which of the following bacteria shows swarming motility on an agar plate? a. Klebsiella pneumoniae b. Escherichia coli c. pseudomonas aeruginosa d. Proteus vulgaris e. Serratia marcescens