1.1 Pathogens 3.0 / 5 based on 1 rating ? BiologyHealth, illness and diseaseASAQA Created by: maddieCreated on: 27-11-12 18:56 What is a microorganism? A single-celled organism to small to be seen by the naked eye which mostly live inside the our bodies 1 of 9 what is a pathogen? A organism that cuases harm to the body 2 of 9 For a microorganism to be considered a pathogen what must it do to the tissues? Colonise and damage them 3 of 9 Why is the skin an effective barrier to infection? It forms a thick, continous layer 4 of 9 How does the digestive system allow entry to microorganisms? Food and water is consumed which may carry pathogens into the stomach and intestine 5 of 9 Through the production of what directly kills microorganisms? stomach acid 6 of 9 How do pathogens affect the body by damaging host tissues? By the sheer number of them and viruses inhibit the synthesis of DNA, RNA and proteins 7 of 9 What do most bacterial pathogens produce that affects the body? Toxins 8 of 9 What does the speed in which the pathogens damage the body depend on? the speed they divide 9 of 9
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