B1.1 - Keeping Healthy 0.0 / 5 ? BiologyKeeping HealthyGCSEAQA Created by: TBK_Wilson27Created on: 02-02-17 17:02 Name the 3 nutrients required for energy Carbohydrates, fats and proteins 1 of 32 Name the 2 nutrients required for keepng healthy Minerals and vitamin ions 2 of 32 What occurs when more energy is used than is put in? Weight loss 3 of 32 What is metabolic rate? The rate at which chemical reactions take place in your cells 4 of 32 What 3 things can increase metabolic rate? High muscel to fat ratio, exercise and inheritance from parents 5 of 32 Which nutrient releases the most energy per gram? Fat 6 of 32 What is protein used for other than providing energy? Growth and repair 7 of 32 What can a high cholestrol increase the risk of developing? A build up of plaque in the arteries 8 of 32 What does a blood clot in an artery prevent? The flow of oxegenated blood to the heart 9 of 32 What is the differecnce between saturated and unsaturated fats? Saturated fats raises cholesterol whereas unstaurated fats lower cholesterol 10 of 32 What is LDL and what dose it cause? Low density lipoprotien - Casues heart disease 11 of 32 What is HDL and what dose it prevent? High density lipoprotien - Prevents heart disease 12 of 32 What are pathogens? Microorganisms that cause disease 13 of 32 Explain how bacteria causes illness They reproduce inside the body producting toxins 14 of 32 Explain how viruses causes illness Reproduce inside a cell they destroy it when they burst out, it then 'invades' other cells 15 of 32 What is the differene between an epidemic and a pandemic? An epidemic is a large area affected by the same disease whereas a pandemic is a disease that effects an entire country or the whole world 16 of 32 What did Semmelwies discover? Bateria can be transfered from one person to another 17 of 32 What did Semmelwies do that lowered the death rate in his hospital? Made all doctors wash their hands in chlorine water 18 of 32 What is phagocyte? A type of white blood cell that can surround and engest bacteria 19 of 32 What do lymphroids produce? Antibodies 20 of 32 What do antibodies do? Kill pathogens 21 of 32 What do antitoxins do? Stick to toxins given off by bacteria and destoy them 22 of 32 Explain the specificness of antibodies and antitoxins Each kind will only work against a particular pathogen or toxin 23 of 32 What is th difference between an antibody and an antitoxin Antibodies destroy bacteria whilst antitoxins destroy toxins 24 of 32 What is an antibiotic? A drug that kills bacteria in your body 25 of 32 What does the overuse of antibiotics lead to? Resistance- The drug will no longer be effective 26 of 32 What does the use of antibiotics incresae the chance of? Mutant bacterium 27 of 32 What does MMR stand for? Meases, Mumps and Rubella 28 of 32 What is a vaccination? A dead or weakend form of the pathogen that is injected into you making you immune 29 of 32 How do vaccinations work? The white blood cells remember which antibody to release if it comes into contact with the same pathogen 30 of 32 What is a culture? The microrganisms growing on a nutrient medium 31 of 32 What temperature should a culture be kept below? 25 degrees celcius 32 of 32
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