A. Antigen recognition by B cells
B. Localization protection in external secretion
C. Compliment activation
D. Reagin activity
Related Mcqs:
- The function of vitamin K is______________?
A. Thrombin formation
B. Prothrombin formation
C. Fibrin formation
D. Thromboplastin formation - The function common to neutrophils, monocytes & macrophages is______________?
A. Immune response
B. Phagocytosis
C. Liberation of histamine
D. Destruction of old erythrocytes - The main function of mitochondria is______________?
A. Protein synthesis
B. Oxidation
C. Electron transfer
D. Fat synthesis - During a routine checkup a 70 year old male is found to have Serum Alkaline Phosphatase three time the upper limit of normal. Serum Calcium, Serum Phosphorous and liver function tests are normal. The most likely diagonsis is______________?
A. Primary hyperparathyroidism
B. Paget’s disease of the bone
C. Osteomalacia
D. Metastatic bone disease - The chemotactic factor is______________?
A. C2a
B. C3b
C. C4a
D. C5a - Example of immune complex hyper-sensitivity reaction is______________?
A. Atopic allergy
B. Serum sickness
C. Transfusion reaction
D. Contact dermatitis - Sterilisation is______________?
A. Pathogens killed but spores are not affected
B. Only pathogenic micro-organisms killed
C. Non-pathogenic killed
D. All pathogenic and non-pathogenic microorganisms killed - The immediate type of hypersensitivity in which histamine doses not play a major role is______________?
A. Urticaria
B. Asthma
C. Anaphylaxis
D. Arthus reaction - The distinguishing characteristic of a positive delayed type hypersensitivity skin test is______________?
A. Erythema
B. Necrosis
C. Induration
D. Vasculitis - Function of T-lymphocyte is/are________________?
A. Production of interferon
B. Lymphokine production
C. Rosette formation
D. All of the above
