Investigate and describe the effects of physical activity on the rate and depth of breathingInvestigate and describe the effects of physical activity on the rate and depth of breathing%MCEPASTEBIN%

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Describe the differences in composition between inspired and expired air, limited to: oxygen, carbon dioxide and water vapour

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Investigate the differences in composition between inspired and expired air using limewater as a test for carbon dioxide

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Identify in diagrams and images the following parts of the breathing system: lungs, diaphragm, ribs, intercostal muscles, larynx, trachea, bronchi, bronchioles, alveoli and associated capillaries

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Describe the features of gas exchange surfaces in humans, limited to: large surface area, thin surface, good blood supply and good ventilation with air

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Explain that the cholera bacterium produces a toxin that causes secretion of chloride ions into the small intestine, causing osmotic movement of water into the gut, causing diarrhoea, dehydration and loss of ions from the blood

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Describe cholera as a disease caused by a bacterium which is transmitted in contaminated water

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State that memory cells are not produced in passive immunity

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Explain that passive immunity is a short-term defence against a pathogen by antibodies acquired from another individual, including across the placenta and in breast milk

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Explain the role of vaccination in controlling the spread of diseases

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