Biology (B2): Aerobic and anaerobic respiration 0.0 / 5 ? BiologyRespiration and exerciseGCSEAQA Created by: rfazendeiroCreated on: 04-02-16 20:25 Why do we need to respire? Energy that is then used to maintain body temperature, allow muscles to contract, cell growth, repair and maintenance. 1 of 10 The difference between oxygen taken in during exercise and oxygen needed is called what? Oxygen defecit/ oxygen debt. 2 of 10 2 examples of when plants or micro-organisms would use anaerobic respiration. Plants with roots in sodden soil and bacteria in puncture wounds. 3 of 10 What is the word equation for aerobic respiration? Glucose + oxygen -> (energy released) + carbon dioxide + water 4 of 10 What is the chemical equation for aerobic respiration? C6H12O6 + 6O2 -> 6CO2 + 6H2O + 2900KJ/mol of glucose. 5 of 10 What is the word equation for anaerobic respiration? Glucose -> (energy released) + lactic acid 6 of 10 What is the chemical equation for anaerobic respiration? C6H12O6 -> 2C3H6O3 + 120KJ/mol of glucose. 7 of 10 How is lactic acid removed form the muscles? Via blood flowing through the muscles. 8 of 10 Due to anaerobic respiration not being able to gain enough energy, what happens to the body? Heavy breathing -> Oxygen debt -> Not enough oxygen taken in during exercise 9 of 10 Why is anaerobic respiration not sustainable? Lactic acid is poisonious -> causes muscle cramps & not enough energy produced. 10 of 10
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