When does anaerobic respiration take place in human cells?
When you do vigorous exercise and your body cannot supply enough oxygen to your muscle cells
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When does anaerobic respiration take place in plant cells?
When the soil a plant is growing in, becomes waterlogged and there is no oxygen available for the roots
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When does anaerobic respiration take place in bacterial cells?
When bacteria gets under your skin through puncture wounds. As there is very little oxygen under skin, bacteria have to respire anaerobically to survive
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What is the word equation for anaerobic respiration in animal cells and some bacterial cells?
Glucose -> Lactic acid (+ energy released)
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What is the word equation for anaerobic respiration in plant cells and some microorganisms?
Glucose -> Ethanol + Carbon dioxide (+ energy released)
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What is fermentation?
When microorganisms break down sugars into other products as they respire anaerobically
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What 3 things do humans use fermentation to make?
Biogas, bread and alcohol
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What is biogas used as?
Fuel e.g. for heating and lighting
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What do microorganisms ferment to make biogas?
Plant and animal waste
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What is biogas mainly made up of?
Methane and carbon dioxide
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What is yeast used to make?
Bread and alcohol
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What does the yeast ferment in the flour to make bread?
Carbohydrates
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What does the yeast release when making bread?
Carbon dioxide
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What does the release of carbon dioxide during fermentation cause bread to do?
Rise
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What does yeast ferment to make alcohol?
Sugar
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Where does the sugar used in alcohol production come from?
Things such as grapes and barley
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Other cards in this set
Card 2
Front
When does anaerobic respiration happen?
Back
When there is very little or no oxygen
Card 3
Front
When does anaerobic respiration take place in human cells?
Back
Card 4
Front
When does anaerobic respiration take place in plant cells?
Back
Card 5
Front
When does anaerobic respiration take place in bacterial cells?
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