Biology 1

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  • Biology B1
    • Diet, Exercise + Weight Problems
      • a balanced diet contains: carbs, protein, fat, vitamins, minerals, fibre, water
      • without a balanced diet  you suffer from dificiency diseases and become malnourished
      • Metabolic Rate
        • your metabolic rate is affected by how much exercise you do. The more you do, the greater your metabolic rate becomes
      • if you take in more energy than you use, the excess is stored as fat
      • obesity can lead to arthiritus, type 2 diabetes and heart disease
    • if the balance of cholesterol is wrong you can have serious health problems
    • Disease
      • microoraganisms which cause disease are called pathogens
        • Common pathogens are bacteria and viruses
      • White blood cells protect you from disease. The ingest the microbe, prodice antitoxins and prodice antibodies
      • The first antibiotic was penicillin. They can kill the bacteria which caused the disease
      • some bacteria become resistant to antibiotics. When they adapt to beat it it is called natural selection
      • vaccines give the body dead pthogens which triggers the natural immune response


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