Question

microbiology

1) what is the type of immunity called that develops following a natural infection that initiates an adaptive immune response?

a) artificial active immunity

b) natural active immunity

c)artificial oassive immunity

d) natural passive immunity

2) which of the following is NOT a characteristic of the adaptive immune response

a) first line of defense

b) specific

c)has memory

d) tolerance

3) what immunoglobulin class is found promaruly on the surface of B-cells

a) IgD

b) IgG

c) IgM

d) IgE

4) which of the following classes of antibidy would likely be the most important in the naturalization of a toxin found in serum ?

a) IgE

b)IgA

c) IgM

d) IgD

5)how many Polypeptide chains make up the TCR?

a) one

b) two

c) three

d) four

6) On the surface of what cells are class 1 MCH proteins found

a) lymphocytes only

b) all nucleated cells

c) dendritic cells only

d) macrophages only

Answer 1

1)- b

2)- a

3)- c ( Actually IgM and IgD both are present on the surface of B Lymphocyte but primarily IgM is the first antibody that generated at the time of defence.)

4)- c

5)- b ( T Cell Receptor is a heterodimer)

6)- a ( MHC type I antigen present on almost all cells except red blood cells while MHC type II can be found on antigen presenting cell, dendritic cells, B cells, Macrophages etc)

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