Test 2

Question 1

explain the humeral immunity mechanism

Answer 1

-Mechanism:
1- the microbial antigen is ingested by APC , and partially fragments from tye microbes bind with the MHC type 2 IgA complex in onther surface of APC
2-A helper T cells specific for presented antigen
3-then the T cells activate appropriate B cells by releasing IL-2 to it
4-the inter act between TH and B cells causes differentiate into a plasma cells and memory cells
5-plasma cell produce Antibodies

Question 2

explain igD

Answer 2

1-type : Monomer
2-how many antigen can bind : 2 antigen
3-size : small
4- biological function are unknown
5- draw it

Question 3

explain IgM

Answer 3

1-type : pentamer
2-how many antigen can bind :10 antigen
3-size : large
4- concentration in the blood : 1,05 - 1,35 g/L
5- how many times its need to work : 3-4 days after contact with bacteria

Question 4

explain IgG

Answer 4

1-type : monomer
2-how many antigen can bind :2 antigen
3-size : smal
4- concentration in the blood : 10,5 - 12,5 g/L
5- how many times its need to work : 7-10 days after contact with bacteria

Question 5

explain the IgE

Answer 5

1-type : monomer
2-how many antigen can bind :2 antigen
3-size : small
4- concentration in the blood : less then 100 international unit
5- how many times its need to work : 7-10 days after contact with parasites
— when you draw it draw it above the Mast cell

Question 6

explain the IgA

Answer 6

• it have two shape
  —serum :
  1-type : monomer
  2-how many antigen can bind :2 antigen
  3-size : small
  4- concentration in the blood : 1,57-2.1g/L
  5- how many times its need to work : 14-21 days after contact with bacteria

—-secretory :

1-type : Diamer
2-how many antigen can bind :4 antigen
3-size : mid
4- concentration in the blood : absent in blood
5- how many times its need to work : 14-21 days after contact with bacteria