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When our body inhale O2 and carry by blood vessel to the lung where the respiratory system convert it to ATP which is energy use in our body. After O2 being converted inside our lung, it become CO2 which is waste. That why we exhale CO2.

For ex: when we eat food, it will be in our stomach. Now, it is time for Didestion system to work as a nutrition collective. Then use all nutrient from the food that we ate, and the rest leave behind is waste and it has to come out.

Hope this help.....!

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14y ago

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carbon dioxide


Does your body need carbon dioxide to function properly?

While our bodies do produce carbon dioxide as a byproduct of cellular respiration, it is not necessary for proper function. In fact, too much carbon dioxide in the blood can be harmful and lead to respiratory distress. The body regulates carbon dioxide levels through breathing and it is effectively removed from the body by the lungs.


Does your body need carbon dioxide to use the nutrients in the food you eat?

No, your body does not need carbon dioxide to use the nutrients in the food you eat. When you consume food, your body breaks down the nutrients into smaller molecules that can be absorbed and used for energy, growth, and repair. Carbon dioxide is a waste product produced during cellular respiration, where cells convert nutrients into energy. The carbon dioxide is then exhaled from the body through the lungs.


What is a function of lung?

The function of the lungs are to bring oxygen, into the body and to release carbon dioxide. Oxygen is what the body needs to make energy and carbon dioxide is a waste that the body does not need.


Is a function of the lungs?

The function of the lungs are to bring oxygen, into the body and to release carbon dioxide. Oxygen is what the body needs to make energy and carbon dioxide is a waste that the body does not need.


Why are water and carbon dioxide needed?

YOU NEED WATER TO LIVE BECAUSE HALF OF YOU BODY IS WATER i don't know about carbon dioxide


How is carbon dioxide on earth?

Because we breath it out as we don't need it in our body.


Does the body need carbon dioxide?

Yes, if you didn't breath carbon there wouldn't be any plants.


What is a waste product of breathing?

Carbon-Dioxide is the gas we breath out. But is also the gas trees need to keep alive.


Why do you need a strong respiratory system?

You need a respiratory system to bring oxygen into your body and to remove carbon dioxide from your body..


Why do we need to release Carbon Dioxide?

your body produce carbon dioxide because just as you eat food and then excrete waste the same applies to respiration if we breath in oxygen (which is good air) our body then takes out carbon dioxide (which is bad air). i hope this helps


Does your body need carbon dioxide for any essential functions?

Yes, the human body needs carbon dioxide for essential functions, such as regulating pH levels in the blood and helping with the process of breathing.