ENDOCRINE ORGANS AND RESPIRATORY SYSTEM
RESPIRATORY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The amount of oxygen needed at the end of a physical activity to break down any lactic acid.
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working at a high intensity level without oxygen for energy production.
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the volume of oxygen an athlete can consume while exercising at maximum capacity.
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smaller branches coming off the bronchi.
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Detailed explanation-1: -Oxygen debt is a natural, temporary process. When we perform intense exercise, glucose (a sugar that comes from carbohydrates) is broken down to provide energy to our muscles, which produces lactic acid as a result. Oxygen is then used to break down the unwanted lactic acid into carbon dioxide and water.
Detailed explanation-2: -The amount of oxygen required to remove the lactic acid, and replace the body’s reserves of oxygen, is called the oxygen debt. When someone who has been exercising pays back an oxygen debt, it can take from a few hours for normal exercise, to several days after a marathon.
Detailed explanation-3: -oxygen debt. noun. : a lack of oxygen that develops in the body during periods of intense activity and must be made good when the body returns to rest.
Detailed explanation-4: -Oxygen debt is the oxygen required (after vigorous exercise, using up the oxygen faster than it can be breathed in) to oxidize lactic acid, created from anaerobic cellular respiration.
Detailed explanation-5: -The extra oxygen you breathe in reacts with the lactic acid in your muscles, breaking it down to make carbon dioxide and water. As the lactic acid breaks down the cramps will begin to disappear. Lactic acid is also made in the mouth, where specialised bacteria convert glucose and other sugars to lactic acid.