BIOL 1080 Chapter Notes - Chapter 3a(v): Mast Cell, Natural Killer Cell, Scleroprotein
28 Mar 2016
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Pathogens the bacteria, viruses, protozoans, fungi, parasitic worms and prions that cause disease. Cancerous cell a once normal body cell, due to gene changes, can no longer regulate cell division. Renegade cells can multiply until they take over the body. Immune response kills disease causing organisms and enables a quick response in case of future exposure. Layer of dead cells from tough outer layer of skin. Cells are illed with ibrous protein keratin, which waterproofs the skin. Mucous membranes lining the digestive and respiratory passages, preventing entry of foreign substances. Sweat and oil produced by glands in the skin wash away microbes. Acidity of the secretions slows bacterial growth and the oil contains chemicals that kill some bacteria. Interferons a small protein secreted by a virally infected cell before it dies. Acts to slow the spread of virus. Attracting macrophages and nk cells that destroy the infected cells immediately.
