Which one of the following is called cytotoxic cells?
Correct answer: B. T-lymphocyte
- A. B-lymphocyte
- B. T-lymphocyte
- C. Monocytes
- D. Neutrophiles
Explanation
Natural Killer Cells are the type of T-lymphocytes. They are also called cytotoxic T-cells. In general, Natural Killer Cells do not directly attack invading microbes.
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Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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The body's response to foreign particles, such as the production of antibodies directed against a specific antigen, is called:
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Which one of the following type of T cells secrete cytotoxin which triggers destruction of the pathogen's DNA?
_ are Y-shaped proteins that circulate through blood stream and bind to specific antigens thereby attacking microbes:
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