• Aerobic cell respiration requires oxygen and gives a large yield of ATP from glucose
• The presence of oxygen allows glucose to be?broken down fully?into carbon dioxide and water
• This yields far more energy (approx. 36 ATP molecules) than anaerobic respiration (2 ATP molecules) per molecule of glucose
• CO2?is a?waste product?and has to be excreted
  • Except in plants where it is used for photosynthesis
• Water is a?by-product?and contributes to the organism's water needs
  • Some animals that live in deserts?drink very little?but survive on this water
• Most of the reactions of aerobic respiration, in eukaryotes, take place in the?mitochondria

Aerobic respiration releases energy during the reaction between glucose and oxygen

Comparing combustion and respiration

• There are?important similarities?between the?burning?(combustion) of fuels and the?two forms of? respiration
• Both?require oxygen?and produce?CO2?and?water
• Both?release heat?from the breakdown of chemical bonds in the fuel

Comparing Respiration and Combustion Table