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Anaerobic Respiration

Key Stage 3

Meaning

Anaerobic Respiration is the process of releasing stored chemical energy from sugars by breaking them down without Oxygen present.

About Aerobic Respiration

Anaerobic respiration can take place in different ways in animal cells, plant cells and bacteria some producing Lactic Acid and others producing ethanol.
In yeast anaerobic respiration produces ethanol which is Alcohol (Drug).
When bacteria or yeast use anaerobic respiration in food it is called fermentation.

Word Equation

AnaerobicRespirationWordEquation.png
A word equation for anaerobic respiration in animal cells, plant cells and bacteria showing the reactants and products.

Symbol Equation

AnaerobicRespirationBalancedSymbolEquation.png
A balanced symbol equation for anaerobic respiration in animal cells and plant cells and bacteria.

Key Stage 4

Meaning

Anaerobic Respiration is the process of releasing stored chemical energy from glucose in the absence of Oxygen.

About Anaerobic Respiration

Aerobic respiration takes place in the muscles when they do not get enough Oxygen.
Anaerobic respiration provides cells with the energy they need for protein synthesis, active transport and movement.
In eukarytotic cells anaerobic respiration takes place in the mitochondria.
In prokaryotic cells anaerobic respiration takes place in the cytoplasm of the cell.
Anaerobic respiration can take place in different ways in animal cells, plant cells and bacteria some producing Lactic Acid and others producing ethanol.
In yeast anaerobic respiration produces ethanol which is Alcohol (Drug).
When bacteria or yeast use anaerobic respiration in food it is called fermentation.

Chemical Equations

Anaerobic Respiration: (in humans): Glucose → Lactic Acid

Anaerobic Respiration: (in humans): C6H12O6 → 2C3H6O3

Anaerobic Respiration: (in yeast): Glucose → Ethanol + Carbon Dioxide

Anaerobic Respiration: (in yeast): C6H12O6 → 2CH3CH2OH + 2CO2

References

AQA

Anaerobic respiration, page 54, GCSE Combined Science; The Revision Guide, CGP, AQA'
Anaerobic respiration, page 62, GCSE Biology; The Revision Guide, CGP, AQA'
Anaerobic respiration, pages 108-10, GCSE Combined Science Trilogy 1, Hodder, AQA'
Anaerobic respiration, pages 12, 38-39, GCSE Biology; Student Book, Collins, AQA'
Anaerobic respiration, pages 123-5, GCSE Biology, Hodder, AQA'
Anaerobic respiration, pages 138-139, GCSE Biology; Third Edition, Oxford University Press, AQA'
Anaerobic respiration, pages 161, 162, GCSE Combined Science Trilogy; Biology, CGP, AQA'
Anaerobic respiration, pages 175, 176, GCSE Biology, CGP, AQA'
Anaerobic respiration; in plants, page 162, GCSE Combined Science Trilogy; Biology, CGP, AQA'
Anaerobic respiration; in plants, page 176, GCSE Biology, CGP, AQA'
Anaerobic respiration; in yeast, page 162, GCSE Combined Science Trilogy; Biology, CGP, AQA'
Anaerobic respiration; in yeast, page 176, GCSE Biology, CGP, AQA'

Edexcel

Anaerobic respiration, page 112, GCSE Combined Science, Pearson Edexcel
Anaerobic respiration, page 162, GCSE Biology, Pearson, Edexcel
Anaerobic respiration, page 177, GCSE Chemistry, Pearson, Edexcel
Anaerobic respiration, page 64, GCSE Combined Science; The Revision Guide, CGP, Edexcel
Anaerobic respiration, page 92, GCSE Biology; The Revision Guide, CGP, Edexcel
Anaerobic respiration, pages 271, 272, GCSE Biology, CGP, Edexcel
Anaerobic respiration; exercise, page 119, GCSE Combined Science, Pearson Edexcel