IMMUNITY

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