the correct amounts of .. carbohydrates protein fats vitamins minerals fibre water
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why do we need a healthy balanced diet?
if you dont have a balanced diet then you will end up malnourished this is a disorder that is caused by your body not getting enough nutrtion.
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how much energy do you need?
males need more energy than females of the same age unless the female is pregnant
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the metabolic rate?
you might need diffrent amounts of energy compared to a friend of the same age /gender/size of you. this is because the rate of chemical reactions in your cells (metolbolic rate)
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obesity
if you take more energy in than you use, the excess is stored as fat. although you need somebody fat to cushion youur internal organs
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losing weight
reduce the amount of energy you take in by cutting back the amount of food you eat + EXERCIZE MORE!
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Lack of food
many people are under weight + malnourished becaude there is not enough food to eat. e.g civil wars (failed crops ) ,africa
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Pathogens & diseases
infections and diseases are found all over the world e.g the common cold to killers e.g HIV /AIDS these can enter and attack your body or they can be passed on by genes
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microorganisms
microorgrams , which cause disease are called pathogens bacteria are single celled living organisms (much smalller) than animal or plant cells. viruses are even smaller than bacteria cause diseaseses to.
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direct contact
spread by the direct contact of the skin e.g sexually spread by herpes
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droplet infection
when you cough, sneeze or talk you expel tiny droplets full of pathogens
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through a break in skin
pathogens passed through cuts or scratches or needle punctures
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preventing microbes getting into your body
your skin covers your body & acts as a barrier it provents bacteria & viruses from reaching the tissues beneath
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the white blood cells help aginst pathogens in several diffrent ways
drugs can make us feel better but what we really need is drugs that cure us. antibiotics kill germs inside the body
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vaccination
immunisation involves giving you a vacctionation . a vacctionation is usally made dead or weakend form of the disease-causing microorganism. it works by triggering your bodys natural immune response to invading pathogens
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Other cards in this set
Card 2
Front
why do we need a healthy balanced diet?
Back
if you dont have a balanced diet then you will end up malnourished this is a disorder that is caused by your body not getting enough nutrtion.
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