Measure of how well you perform physical tasks. (Strength, speed, agility, flexibility and stamina)
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What is blood pressure?
Measured in mmHg (mm of mercury) and is influenced by different factors.
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Define Systolic Pressure
Pressure when the heart contracts. This is the highest point.
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Define Diastolic Pressure
Pressure when the heart reaches diastole and relaxes. This is the lowest point.
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What factors affect blood pressure?
Smoking, weight, alcohol consumption and persistent stress over a period of time.
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What are the effects of high blood pressure?
It can cause blood vessels to burst which can cause strokes and brain damage as well as kidney damage.
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What are the effects of low blood pressure?
Feeling lightheaded, poor circulation and fainting.
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Define Plaque
A build up of cholesterol in arteries caused by eating too many saturated fats. Leads to high blood pressure.
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What is the risk caused by narrow arteries?
It can lead to a heart attack because the coronary arteries become narrowed and heart does not receive oxygen and nutrients.
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What are the six essential nutrients?
Carbohydrates, fats, proteins, water, vitamins and minerals. (+ fibre)
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What are fats and where are they stored?
They are fatty acids and glycerol. They are stored as adipose tissue around organs and under the skin.
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Why is protein shortage a problem in developing countries?
As the supply-and-demand rate changes rapidly, not enough protein-rich food can be made to prevent diseases such as kwashiorkor. The lack of food, money and infrastructure affect production.
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What is the formula for EAR?
EAR (g) = 0.6 x Mass (kg)
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What are two main psychological disorders which affect food consumption?
Anorexia nervosa and bulimia nervosa.
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What is the formula for BMI?
BMI = Mass (kg) ÷ Height² (m)
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What are the four types of pathogens?
Fungi, viruses, bacteria and protozoa.
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What is a vector?
It is an organism which carries a disease without being affected by it. For example, mosquitoes are vectors of malaria.
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What are the three ways that the immune system deals with pathogens?
Production of anti-toxins, ingestion and production of antibodies.
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How are antibodies produced?
Foreign antigens on the pathogen are identified. Immune system begins creating antibodies to bind to antigen and disable the pathogen. Antibody is stored in memory cells for later use.
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Up to page 13.
Up to page 13.
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Other cards in this set
Card 2
Front
Measure of how well you perform physical tasks. (Strength, speed, agility, flexibility and stamina)
Back
Define Fitness
Card 3
Front
Measured in mmHg (mm of mercury) and is influenced by different factors.
Back
Card 4
Front
Pressure when the heart contracts. This is the highest point.
Back
Card 5
Front
Pressure when the heart reaches diastole and relaxes. This is the lowest point.
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