Biology: B1: Keeping Healthy 0.0 / 5 ? BiologyHealthy livingGCSEAQA Created by: luciieeebxCreated on: 23-01-15 16:39 What is the condition when the body does not have a balanced diet? Malnourished 1 of 27 Define Metabolic Rate The rate at which reactions in the body take place 2 of 27 What can cholesterol cause? Heart Disease 3 of 27 What are pathogens? Microorganisms that cause infectious diseases. 4 of 27 Name the 2 types of pathogen Bacteria and Virus 5 of 27 What do they produce that makes you ill? Toxins 6 of 27 What do viruses do? Damage cells 7 of 27 Who realised that infections can be transferred? Semmelweiss 8 of 27 What does the skin, mucus and stomach acid do to protect you? skin works as a barrier, trapped in mucus and killed by stomach acid 9 of 27 What do white blood cells do? produce anti toxins, produce antibodies and ingest the pathogens 10 of 27 What do antibiotics do? kill infective bacteria in the body 11 of 27 What did Alexander Fleming discover in 1928? penicillen 12 of 27 Why are viruses difficult to kill? They reproduce quickly and treatment could damage cells 13 of 27 What do painkillers do? Relieve the symptoms but do not kill the pathogen. 14 of 27 What must bacteria be grown in? give an example culture medium such as agar jelly 15 of 27 What must be provided? warmth and oxygen 16 of 27 What temperatures must they be kept at? (school + industry) school= 25 degrees and industry= 35 degrees 17 of 27 What must you do to keep culture pure? sterilise all equipment 18 of 27 How do you sterilise the innoculating hoop? Put into a blue bunson burner flame 19 of 27 What do you do when growing bacteria? Seal the dish quickly and tape but not all the way 20 of 27 Why is this? To stop contamination but allow in oxygen 21 of 27 What is a mutation? When a pathogen changes to develop a new strain of itself 22 of 27 What is an epidemic? When a disease spreads across the country 23 of 27 What is a pandemic? When a disease spreads across multiple countries 24 of 27 How does a vaccine work? athenuated (inactive) pathogen is injected into the body, this causes the body to make the correct antibodies 25 of 27 Why is that important? Allows the body to make those antibodies more quickly if that pathogens is found 26 of 27 What can the overuse of antibiotics do? lead to development of new strains of bacteria 27 of 27
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