understanding ourselvs: resperation
muscles use oxegen to seprate energy from glucase. this proces is called respration. wgen cells do alot of work that need oxegen to function properly this is provided through the lungs. as you ecsersice your mussles use up oxegen and so there for the more work you do the harder you hart and your lungs need to work. durin exercise your heart rate incraces and your breathing rate speed up.the speeding up of the heart rate also helps remove any un needed waste such as carbon dioxide. this is relced through your breath.
when your cells and muscles are getting enough oxegen you use aerobic resperation to relece oxegen from food
glucose + oxegen ----> carbon dioxide + water +energy
when your musles and cells arent geting enough oxegen you use anaerobic resperation to release energy from food.
glucose ----> lactic acid + energy
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