LABORATORY REVIEW
CELL RESPIRATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The runners cells need oxygen to make lactic acid
|
|
|
The runners cells continue the fermentation process
|
|
|
The runners cells are making up for oxygen deficit
|
|
|
The runners cells cannot preform glycolysis
|
Detailed explanation-1: -When an athlete runs in the race, his body needs more oxygen. His rate of breathing increases so that more oxygen can be supplied to the cells of his body.
Detailed explanation-2: -Why does it feel difficult? Strenuous activities such as running cause your muscles and respiratory system to work harder than normal. You require more oxygen and must remove carbon dioxide buildup, which can make breathing more difficult.
Detailed explanation-3: -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-4: -This burn is a direct result of your body metabolizing glucose faster than it can supply oxygen. At that point you breathe more heavily and may feel short of breath as your body tries to increase oxygen intake.