IL-1 and TNF a during inflammation are secreted by______________?
A. Plasma cells
B. Activated macrophages
C. Lymphocytes
D. Platelet
Microbiology
Virus infected cell is killed by________________?
Virus infected cell is killed by________________?
A. Interferons
B. Macrophages
C. Neutrophils
D. Autolysis
Prozone phenomenon is due to______________?
Prozone phenomenon is due to______________?
A. Disproportionate antigen antibody levels
B. Excess antigen
C. Excess antibody
D. Hyper immune reaction
Most sensitive test for antigen detection is_______________?
Most sensitive test for antigen detection is_______________?
A. Radioimmuno Assay
B. ELISA
C. Immunoflourescence
D. Passive hemaglutination
Complement binding immunoglobin via the classical pathway is_______________?
Complement binding immunoglobin via the classical pathway is_______________?
A. IgG & igM
B. IgG & IgA
C. IgG & IgD
D. IgD & IgE
Function of Ig A is________________?
Function of Ig A is________________?
A. Acts as a mucosal barrier for infection
B. Circulating antibody
C. Kills virus infected cells
D. Activates macrophages
Antigen combining site of the antibody is____________________?
Antigen combining site of the antibody is____________________?
A. Idiotope
B. Paratope
C. Epitope
D. Hapten
Opsonisation is by_______________?
Opsonisation is by_______________?
A. IgA
B. IgE
C. IgG
D. IgM
E. Both C & D
Endotoxins are produced by________________?
Endotoxins are produced by________________?
A. Fungi
B. Gram +ve bacteria
C. Virus
D. Gram -ve bacteria
The antigen used in Weil Felix test is obtained from________________?
The antigen used in Weil Felix test is obtained from________________?
A. Pseudomonas
A. coli
B. Proteus
C. Staphylococcus