Topics: Immune system, Antibody, B cell Pages: 6 (697 words) Published: December 22, 2013

Immunity(5 MCQS)
 Immune system and define its components:
- Antigen
- Antibody (structure of antibody)
- Lymphocytes (B and T cells)
 What is cell mediated response and humoral immune response?  Types of Immunity:
- Active immunity
- Passive immunity
 What do you mean by vaccination?

1) The humoral immunity defends mostly against viruses and bacteria throgh a) Skin
b) Digestive system
c) Body fluids
d) Internal organ

2) Which of the following is effective against viral infections? a) Active natural immunity
b) Passive natural immunity
c) Passive artificial immunity
d) All

3) If a person suffers from small pox and develops immunity later on , this type of immunity is called a) Active natural immunity
b) Active artificial immunity
c) Passive artificial immunity
d) Passive natural immunity

4) B-lymphocytes were discovered to have role in immune system from a) Birds
b) Frog
c) Human beings
d) Bacteria

5) Immunogen is
a) Antibody
b) Antigen
c) Lymphocyte
d) Lipids

6) Autoimmunity against measles Is example of
a) Natural active immunity
b) Natural passive immunity
c) Artificial active immunity
d) Artificial passive immunity

7) Immunoglobins are produced by
a) Vertebrates
b) Invertebrates
c) All living organisms
d) Antigens

8) Antibodies are secreted into
a) Tissue fluids
b) Lymph
c) Blood
d) All

9) Which of the following is the unit of immune system?
a) Parasites
b) Lymphocytes
c) Antibodies
d) Both b and c

1) Antivenom is used in treating
a) Snake bite
b) Measles
c) Small pox
d) All

2) Antiserum is used for
a) Passive immunity
b) Autoimmune response
c) Active immunity
d) All

3) T-cells respond to pathogens by producing
a) Killer T-cells
b) Helper T-cells
c) Suppressor T-cells
d) All

4) Which of them is directly involved in phagocytosis?
a) Neutrophils
b) B-cells
c) T-cells
d) Lymphocytes

5) What is the function of lymphocytes?
a) Destruction of poisonous substances
b) Destruction of bacteria
c) Destruction of RBC
d) All

6) Immune system in our body constitutes
a) 1st defense system
b) 2nd defense system
c) 3rd defense system
d) 4th defense system

7) The antibodies provided to infant through mother’s milk a) Natural active immunity
b) Natural passive immunity
c) Artificial passive immunity
d) Artificial active immunity

8) The chemical nature of antibody is
a) Glycoprotein
b) Glycolipids
c) Polysaccharides
d) Lipoproteins

9) Which of the following is describes as vaccination?
a) Artificial active immunity
b) Artificial passive immunity
c) Natural active immunity
d) Natural passive immunity

1) Which chemicals are secreted by T-helper cells to stimulate B-plasma cells to divide a) Cytokines
b) Interferons
c) Histamines
d) Fibrins

2) B-lymphocytes and T-lymphocytes are formed
a) Before birth in thymus
b) Before birth in bone marrow
c) After maturity in blood
d) After birth in blood

3) Skin and mucous membrane are part of body defense system and they form a) Physical barriers
b) Chemical barriers
c) Biological barriers
d) Mechanical barriers

4) Antibodies are produced by which of the following
a) B-lymphocytes
b) T-lymphocytes
c) B- and T- lymphocytes
d) A-lymphocytes

5) Snake bite is treated with which type of immunization?
a) Active
b) Passive
c) Humoral
d) Specific

6) T-lymphocytes become mature and competent under the influence of a) Thymus gland
b) Bursa of fabricius
c) Spleen
d) Liver

7) Antigen is a foreign protein or any other molecule which stimulates the formation of a) B-lymphocytes
b) MHC complex
c) Antibodies
d) Immunogens

8) Chemical produced by micro-organisms which are capable of destrouying bacteria are known as a) Antigens
b) Antibodies
c) Antiseptics
d) Biocidal

9) Antibodies are actually
a) Glycoproeins
b) Glycolipids
c) Globular proteins
d) Fibrous proteins

1) Which of the following is effective...
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