It occurs in three steps 1. Glycolysis, 2. Kerbs cycle, 3. Electron transport chain
Oxygen makes up 21% of the Earths atmosphere.
Cellular Respiration
Respiration
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oxygen is used up in respiration.
oxygen
Respiration.
Oxygen makes up about 21% of the Earth's atmosphere. It is essential for respiration in animals and the combustion of fossil fuels.
Oxygen.
yes
It allows us to make energy when our cells are not getting oxygen, but in return produces lactic acid. This is not a significant energy source because it only gives the body 2 ATP unlike aerobic respiration which gives around 25 times that amount. Anearobic respiration is used when you sprint because you rapidly use up energy and don't have oxygen coming in fast enough to do aerobic respiration, so it makes up for that using anaerobic respiration.
The gas you are referring to is oxygen. It makes up about 21% of Earth's atmosphere and is essential for all living organisms that perform respiration to survive. Oxygen is consumed during respiration to produce energy for the body's functions.