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Why would exhaled air or air near a fern plant have a different concentration of carbon dioxide than classroom air?
Air is altered by respiration (in animals) and photosynthesis (in plants). When humans breathe in classroom air, its contains about 21% oxygen and 0.03% carbon diox…ide. In the lungs, oxygen is removed from the air and taken into the blood. The oxygen is used in the process of respiration to release energy from food. One of the waste products of respiration is carbon dioxide. At the same time as we absorb oxygen into the blood, carbon dioxide passes from the blood into the air in the lungs. The air we breathe out (exhaled air) therefore contains less oxygen and more carbon dioxide than normal clasroom air. During photosynthesis plants use up carbon dioxide and produce oxygen. Therefore, near a plant which is photosynthesising, the level of carbon dioxide could be reduced because it is being removed by the plant. For a simple comparison of inhaled and exhaled air see: http://www.bbc.co.uk/schools/ks3bitesize/science/biology/gas_3.shtml For an experiment demonstrating carbon dioxide production see: http://www.biotopics.co.uk/humans/inhaledexhaled.html For an introduction to photosynthesis see: http://www.bbc.co.uk/schools/gcsebitesize/biology/greenplantsasorganisms/0photosynthesisrev1.shtml
There is more Carbon Dioxide (CO2) when we breathe out because some of the Oxygen (O2) is absorbed into the blood via the lungs, and CO2 is removed from the blood, into the lu…ngs. (O2 converts to CO2 in the body) However, this is only a small change so we still breathe out Oxygen: (which is why CPR works) Breathing In: 21% O2, 0.04% CO2 Breathing Out: 17% O2, 4% CO2 (about 4% change in both)
Carbon dioxide is an end product of the matabolism in humans and other higher animals. Sugars, fats and amino acids are broken down to produce energy for the body and carbon d…ioxide is an unwanted by-product which is returned to the lungs and exhaled.
air exhaled by an animal would have slightly more CO2 Air exhaled from a plant would have slightly less.
More Oxygen, because some of it is processed into Carbon Dioxide (CO2).
Inhaled Air supplies O2 to the Blood and then to the Tissues. Exhaled Air removes CO2 from the Blood and then to the Lungs for Transpiration.
Yes it does because it is a waste that your body does not need.
Yes, exhaled air contains more carbon dioxide than inhaled air.
When we inhaled, we use the oxygen in the air to send to the organs in our body, in order to stay alive. When all the oxygen stored in a red blood cell is used up, our bodies …convert it to carbon dioxide, and this is part of the air which we exhaled.
Yes! If you are asking this you are dumb!
Is carbon dioxide present at a higher concentration in air that is exhaled than in air that is inhaled?
yes it is the inhaled air is 0.04 %, whereas, of the exhaled air is 4 % (100 times) more
Since carbon dioxide dissolves in water and forms carbonic acid, you could have water samples, one exposed only to the atmosphere, and one exposed to exhaled air, and then mea…sure their pH with a pH meter.
Why are there differences in the oxygen and carbon dioxide compositions of inhaled air and exhaled air?
Oxygen is very important for humans.Man cannot survive without oxygen.It is the primary agent in almost all process that takes place in a human body.When we inhale air we …only utilise the oxygen present in the air.But really the air we inhale is a mixture of many gasses.The air we inhale contains about 78% nitrogen ,21% oxygen. When air is inhaled, a portion of that 21% that is oxygen diffuses across the alveolar membrane into the blood to be taken to the body to be used. At the same time, carbon dioxide, a waste gas for the body, is diffusing back across the alveolar membrane to be exhaled. This results in the change in inhaled and exhaled air. Exhaled air has a lower fraction of oxygen and a higher fraction of carbon dioxide as a result of the diffusion across the alveolar membrane.
Exhaled air has more carbon dioxide and less oxygen than does inhaled air.
Through the many holes in the leaves called the stomata.
Inhaled air contains more oxygen than carbon dioxide and other gases. Exhaled air contains mostly carbon dioxide as the inhaled oxygen was used up to create energy. Waste carb…on dioxide (and other unwanted gases) is then let out of the body and the cycle continues. :) Gas exchange Gas% in inhaled air% in exhaled air / Oxygen | 21 | 16 / Carbon dioxide | 0.04 | 4 / Nitrogen | 79 | 79