Respiration

• respiration transfers energy that the cell needs to do anything, this energy is used for all living things
• Respiration is the process of transferring energy from breakdown of glucose (sugar)
• respiration in animals is used to allow the muscles to contract
• In a cell the chemical reactions happening constantly are controlled by enzymes
• There are two types of respiration: aerobic and anaerobic.
• Aerobic respiration uses oxygen and produces carbon dioxide and water
• Aerobic respiration is the most efficient way to transfer energy from glucose
• Most of the reactions in aerobic respiration happen inside the mitrochondria.
• Aerobic respiration equation : Glucose + Oxygen —> Carbon Dioxide + Water
• Anaerobic respiration is used if theres not enough oxygen to carry out aerobic respiration
• When your body can’t supply enough oxygen when doing exercise it begins to do anaerobic respiration as well as aerobic respiration
• Anaerobic respiration means withoit oxygen
• Anaerobic respiration is the incomplete breakdown of glucose forming lactic acid
• Anaerobic respiration does not transfer as much energy as aerobic respiration as the glucose isn’t fully oxidised
• After your body stops using anaerobic respiration you will have an oxygen debt
• Oxygen debt is the amount of extra oxygen your body needs to react with the build up of lactic acid and remove it from cells.
• oxygen reacts to lactic acid to form harmless carbon dioxide and water
• You have to repay the oxygen dept as you were unable to revive oxygen to your muscles in time, due to your lungs, heart and blood being unable to keep up with the demand previously
• To restore an oxygen dept you will have to keep breathing hard for a while to get more oxygen into your blood, which is transported to the muscle cells
• In an oxygen dept your pulse and breathing rate stay high while there are high levels of lactic acid and carbon dioxide
• In an oxygen dept the blood that enters your muscles transports the lactic acid to the liver, where it is converted back into glucose