Use A for True and B for false. For your own information. If the statement is false,

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Use A for True and B for false. For your own information. If the statement is false, correct the bold underlined word or phrase & insert your correction in the answer blank

1. T cells give rise to plasma cells.
2. T cells mature in the bone marrow.
3. The constant region of the immunoglobulin chains are the antigen binding regions.
4. The, constant region of the antibody structure determine immunoglobulin class.
5. Accessory cells that act as antigen presenters of foreign bacteria, thus helping to activate the lymphocytes are neutrophils.
6. The protein molecules that protect tissue cells from viral takeover are collectively called interferons.
7. Lymphokines are produced by macrophages.
8. The T cell responsible for tempering and shutting down the immune response when the pathogen has been routed is the helper T cell.
9. The failure of immune system to tolerate self results in immunofeficiencies.
10. The four cardinal signs of inflammation are heat , redness, pain and immobility.
11. Memory T cells produce antibodies more efficiently and faster when encounters antigen for second time.
12. The initial response to an antigen is called the primary response.
13. The initial response to an antigen is always faster and more vigorous than the secondary response.
14. Cytotoxic T cells may destroy a “foreing” cell by releasing a destructive protein called perforin, by secreting a poisonous lymphotoxin, or by activating apoptosis within the target cell.
15. T cells are monocytes