SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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by the liver to repay oxygen debt, producing glucose and then breaking down the glucose into oxygen and water.
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by the kidney to repay oxygen debt, producing glucose and then breaking down the glucose into carbon dioxide and water.
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by the liver to repay oxygen debt, producing glucose and then breaking down the glucose into carbon dioxide and water.
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by the heart to repay oxygen debt, producing glucose and then breaking down the glucose into carbon dioxide and water.
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Detailed explanation-1: -When you exercise and your muscles work harder, your body uses more oxygen and produces more carbon dioxide. To cope with this extra demand, your breathing has to increase from about 15 times a minute (12 litres of air) when you are resting, up to about 40–60 times a minute (100 litres of air) during exercise.
Detailed explanation-2: -You are ‘repaying’ the oxygen debt. HT: oxygen debt, to be precise, is the amount of extra oxygen needed to react with lactic acid in muscles and remove it from cells. The blood flow through muscles removes lactic acid and transports it to the liver. In the liver, the lactic acid is converted back into glucose.
Detailed explanation-3: -Oxygen debt is a natural process that is not considered harmful. It is also not to be confused with an oxygen deficit, which occurs at an earlier stage during cellular respiration. After oxygen debt, excess post-exercise oxygen consumption (EPOC) begins to help restore the body to its normal resting state.
Detailed explanation-4: -By providing the body with extra oxygen, supplemental oxygen can help to increase the oxygen deficit during exercise, leading to a greater oxygen debt and more efficient recovery after exercise.