B2 (Keeping healthy) - keywords 0.0 / 5 ? BiologyKeeping HealthyGCSEOCR Created by: Kayla FollettCreated on: 12-05-16 11:03 Bacteria Single-celled microorganisms with no nucleus. 1 of 21 Fungi A group of organisms including mushrooms, toadstools and yeasts. 2 of 21 Virus A tiny microorganism with a very simple structure that is reliant on using a cell's machinery to reproduce. 3 of 21 Immune system The body's defence system against infections and diseases (consists of white blood cells and antibodies). 4 of 21 White blood cell A type of cell in blood that fights infection. 5 of 21 Antibody Produced by white blood cells to inactivate disease-causing microorganisms. 6 of 21 Antigen A marker on the surface of a disease-causing microorganism. 7 of 21 Natural immunity To remain resistant or to be unaffected by a specific disease 8 of 21 Side effect A condition caused by taking medication, e.g, headache, nausea 9 of 21 Mutation A spontaneous change in the genetic code of a cell. 10 of 21 Antimicrobial A chemical that kills bacteria, fungi and viruses. 11 of 21 Clinical trail The process of testing a medical treatment or medicine on human volunteers for safety and effectiveness. 12 of 21 Artery A muscular blood vessel that carries blood away from the heart. 13 of 21 Vein A blood vessel that carries blood towards the heart. 14 of 21 Capillary A blood vessel that connects arteries to veins; where the exchange of materials takes place. 15 of 21 Epidemiological study A study of the factors affecting the health and illness of populations. 16 of 21 Homeostasis The maintenance of a constant internal environment. 17 of 21 Hormone A regulatory substance that stimulates cells or tissues into action. 18 of 21 ADH (Anti-diuretic hormone) A hormone that controls the concentration of urine. 19 of 21 Pituitary gland The small gland at the base of the brain that produces hormones. 20 of 21 Hypothalamus The part of the brain responsible for mantaining homeostasis. 21 of 21
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