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Respiration - Coggle Diagram
Respiration
Aerobic Respiration
Respiration is also called cellular respiration. This is because the reactions of respiration occur inside cells.
Every living cell needs energy is released from food (glucose) by a series of chemical reactions called repsiration.
Respiration is and exothermic reaction which means energy is transferred to the environment. Some of the energy is used inside cells and the rest will be transferred out of the cell.
Respiration occurs 24 hours a day, continuously, in all living cells.
An organism will receive all the energy it needs for living processes as a result of the energy transferred from respiration.
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Anaerobic Respiration
Respiration can transfer energy in cells anaerobically (without oxygen). During hard exercise, muscles cells are respiring so fast that the blood cannot transport enough oxygen to meet their needs.
The muscle cells switch to use anaerobic respiration to transfer energy. Glucose is not completely broken down to carbon dioxide and water, so less energy is transferred. An end product called lactic acid is formed. This builds up in the muscles cells.
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After exercise the lactic acid must be combined with oxygen to convert it to carbon dioxide. The amount of oxygen which must be taken in to convert all the lactic acid to carbon dioxide is called oxygen debt.
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