Aerobic vs Anaerobic Respiration

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  • Created by: chunks-42
  • Created on: 11-05-15 14:59


The oxidative process occuring within living cells by which the chemical energy of organic molecules is released in a series of metabolic steps involving the consumption of oxygen and the liberation of carbon dioxide and water.

Thic can occur aerobically or anaerobically - with or without oxygen.

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What is ATP?

Name: Adenosine Tri-Phophate

Chemical Formula: C10H16N5O13P3

Job: It releases energy when broken down into ADP.


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Aerobic Respiration VS Anaerobic Respiration

Aerobic Respiration

C6H12O6 + O2 ----> CO2 + H2O + ATP

Anaerobic Respiration

C6H12O6 -----> Lactic Acid + ATP

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Differences between aerobic and anaerobic

Aerobic Respiration

Substrate: Glucose and Oxygen

Products: Carbon dioxide and water

ATP Quantity: 38

Anaerobic Respiration

Substrate: Glucose

Products: Lactic acid

ATP Quantity: 2

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Muscles in Action

Normal Activity - During normal activity the muscles will respire aerobically

Increased physical activity - As the muscles are unable to be supplied with enough oxygen they must respire anaerobically which causes an increase in lactic acid.

Carbon dioxide is a waste product and concentrations in muscles increase causing the pH to become more acidic.

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ATP credit - Oxygen Debt

Lactic acid is transported to the liver so that it can be converted into a compund used to produce ATP.

You can continue to breathe heavily after exercise as the additional oxygen is needed to oxidise the lactic acid formed.

ATP was on credit and the oxygen is needed to pay back the debt. 

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