1) How many lines of defence does the immune system have? a) 1 b) 2 c) 3 d) 4 2) What is involved in the non-specific defence? a) Skin, mucus membranes, phagocytes and mast cells. b) Antibodies and Antigens c) T-Cells and B-Cells d) All of the above! 3) Histamines can also be released as part of a non-specific immune response and cause vasodilation of arteries and vasoconstriction of bronchioles. They are released by .................... a) Cytoxic T-Cells b) B-Cells c) Mast cells d) All of the above! 4) Which cells are involved in specific defence? a) Skin, mucus membranes and phagocytes b) Antibodies and Antigens c) T-Cells and B-Cells d) All of the above! 5) .......... are type of immune cell that can surround and kill microorganisms, ingest foreign material, and remove dead cells a) Phagocytes b) Cytotoxic T-Cells c) B-Cells d) Antibodies 6) Which of these immune cells are classified as phagocytes? a) Monocytes, Macrophages and Dendritic cells b) Helper T and B Cells c) Antibodies and Antigens d) All of the above! 7) Lymphocytes are immune cells made in the bone marrow. The two main types are ....... a) Antibodies and Antigens b) B-Cells and T-Cells c) Monocytes and Macrophages d) All of the above! 8) ...... are a type of white blood cell that makes infection-fighting proteins called antibodies. a) Phagocytes b) Cytotoxic T-Cells c) B-Cells d) Antibodies 9) ......... are proteins that protect you when an unwanted substance enters your body. They bind to these unwanted substances in order to eliminate them from your system a) Phagocytes b) Cytotoxic T-Cells c) B-Cells d) Antibodies 10) ......... are part of your adaptive immune system. They are specialised, and target specific pathogens, either by causing a perforation in the infected cell membrane or by causing the cell to self destruct (apoptosis). a) Phagocytes b) Cytotoxic T-Cells c) B-Cells d) Antibodies 11) An antigen is a toxin or other foreign substance which induces an immune response in the body, especially the production of ............. a) Phagocytes b) Cytotoxic T-Cells c) B-Cells d) Antibodies 12) Your body also has helper cells which help to activate other immune cells. One example is helper T cells which.... a) Activates cytoxic T-Cells b) Stimulates B-Cells to produce antibodies c) Release molecules called cytokines. Cytokines send messages to other immune cells to start an immune response. d) All of the above!

The Immune System Cells

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