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To investigate how the heart rate and breathing rate increase with exercise.Scientific KnowledgeAerobic respiration needs an input of oxygen, and outputs carbon dioxide
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Assessed Practical Aim To investigate how the heart rate and breathing rate increase with exercise. Scientific Knowledge Aerobic respiration needs an input of oxygen, and outputs carbon dioxide. The internal surface of the lungs is where oxygen passes from the air into the body, and where carbon dioxide passes from the body to the air. This process is called gaseous exchange. Oxygen, which is breathed in with air, passes from the lungs into the blood. It can then be supplied to cells where it is needed for respiration. The waste product carbon dioxide then passes into the blood and onto the lungs where it is breathed out. Glucose + Oxygen -> Carbon Dioxide + Water + Energy C6 H12 O6 + 6O6 -> 6CO2 + 6H2O+ Energy The input and output needs of the body do not always stay at the same level. One good example of this is when we exercise. Suddenly we need a lot more...
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