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FILL IN THE BLANK 17. Blood borne antigens are presented by antigen presenting c

ID: 149821 • Letter: F

Question

FILL IN THE BLANK

17. Blood borne antigens are presented by antigen presenting cells in the: ______________ (1)

18. 2 types of cells that express Class II MHC are: ___________________ and __________________. (2)

19. Class 1 MHCs present antigens to CD ____ T cells. Class 2 MHCs present antigens to CD ___ T cells (2).

20. Antigens can form 2 types of epitopes. __________ epitopes are based on the primary sequence of the protein. ____________ epitopes are based on the protein’s structure. (2)

21. Name 3 types of cells that are produced by the process of hematopoiesis. (3)

Explanation / Answer

17)blood-thymus barrier in the cortex because the antigens are present in the blood thymus barrier to fight infections

18)Dendritic cells and B cells because Class II MHC fight infections which both the dendritic and B cells do by killing the cells which may cause infections and fighting them

19) Class 1 MHCs present antigens to CD HELPER T cells. Class 2 MHCs present antigens to CD CTYOTOXIC T cells

because CD helper T cells helps the cells to bind to the proteins while the CD cytotoxic cells also helps them to bind to the MHC proteins

20) Linear B-cell epitopes are based on the primary sequence of the protein. T-CELL epitopes are based on the protein’s structure

because Linear B- cell epitopes depict the sequence of the protein while T-cell opitopes depict the structure of the protein.