A. Lipid-polysaccharide complex
B. Protein compound
C. Lipoprotein
D. None
Related Mcqs:
- Endotoxins differ from exotoxins in that endotoxins______________?
A. are proteins
B. are heat labile
C. are highly antigenic
D. activate complement by the alternate pathway - Which of the following is not a feature of anaphylaxis ?
A. Delayed reaction
B. Immediate reaction
C. passive transfer by serum
D. None of the above - An example of naturally acquired passive immunity is__________________?
A. Hepatitis vaccination
B. Gamma globulin injection
C. Immune blood transfusion
D. Placental transfer of antibodies - Sporulation occurs in__________________?
A. Lag phase
B. Log phase
C. Stationary phase
D. Decline phase - Function of T-lymphocyte is/are________________?
A. Production of interferon
B. Lymphokine production
C. Rosette formation
D. All of the above - The function of IgD is______________?
A. Antigen recognition by B cells
B. Localization protection in external secretion
C. Compliment activation
D. Reagin activity - Complement factor through which common pathway begins___________________?
A. C3
B. C5
C. C2
D. Protein B - A type of immediately occuring reaction in which antigens combine with antibodies already attached to the surface of mast cells and basophils is called_____________?
A. Type I hypersensitivity
B. Type II hypersensitivity
C. Type III hypersensitivity
D. Type IV hypersensitivity - Antigen combining site of the antibody is____________________?
A. Idiotope
B. Paratope
C. Epitope
D. Hapten - The cell wall deficient bacteria_______________?
A. Rickettsiae
B. Mycoplasma
C. Chlamydiae
D. Ehrlichiae
