State the uses of energy in living organisms including muscle contraction, protein synthesis, cell division, active transport, growth, the passage of electrical impulses along neurones and the maintenance of a constant body temperature
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Describe respiration as the chemical reactions in all living cells that release energy from glucose
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Explain the role of goblet cells, ciliated cells and mucus in protecting the gas exchange system from pathogens and particles
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Investigate and explain the effect of physical activity on rate and depth of breathing
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Explain the role of the ribs, the internal and external intercostal muscles and the diaphragm in producing volume and pressure changes in the thorax, causing the movement of air into and out of the lungs (breathing)
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Identify, on diagrams and images, the ribs, internal and external intercostal muscles and the diaphragm
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Identify, on diagrams and images, the larynx, trachea, lungs, bronchi, bronchioles, alveoli and associated capillaries
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Investigate and explain the differences between inspired and expired air
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State the percentages of the gases in atmospheric air
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