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Practical Investigation (Factors that affect respiration (Temperature…
Practical Investigation
Aerobic respiration
Aerobic respiration is a chemical process that transfers energy to the cells. This process is facilitated by enzymes.
Aerobic respiration needs oxygen to break down glucose to form carbon dioxide and water (+ energy). :
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Anaerobic respiration
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Anaerobic respiration occurs in plants that have little to no oxygen access and in muscles in animals.
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What is respiration?
Respiration is a chemical process by which cells containing air transform oxygen and glucose into carbon dioxide and water which then releases energy.
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What is breathing?
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The chest expands and contracts to let air in and out of the lungs. This happens because when the chest expands it releases pressure in the thoracical cavity and draws air into the lungs and the opposite happens when the cavity contracts.
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Respiration in yeast
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Anaerobic respiration in yeast creates Carbon dioxide as a bi-product of respiration without oxygen. Anaerobic respiration in yeast equation:
C6H12O6 --> 2C2H5OH + 2CO2
Aerobic respiration in yeast creates carbon dioxide as a bi-product of respiration. Aerobic respiration equation in yeast:
C6H12O6 + 6O2 --> 6CO2 + 6H2O