how many people live from breathing oxygen in the air versus releasing carbon dioxide from their body?
447229
ALL human beings inhale atmospheric air, absorb its oxygen, and exhale carbon dioxide.\nOn the other hand, ALL plants intake atmospheric air, absorb its carbon dioxide, and exhale the oxygen - which proves beneficial to humankind !
1096198
as humans we are carbon based but in order to live we need Oxygen\n\nYeah I think there are millions of things out there living on other gases.
177506
To wake up.  The Body takes in a lot of oxygen because the body is full of carbon dioxide...and carbon dioxide makes you sleepy. So with new oxygen the body feels less tired in a sense refreshed. (Apollo 13)
194796
They both breathe air,eat,drink,sleep,reproduce,die and so on
548720
HISTORY OF OXYGEN\n\nIt's difficult to think of free oxygen, which makes up 21 percent of earth's atmosphere, as a poisonous gas. Virtually all organisms alive today need oxygen to survive. Even plants, which expel oxygen into the atmosphere, need oxygen to live. There was a time early in earth's history, however, when living organisms not only did not need oxygen, but were killed when exposed to the element. \n\nThree and a half billion years ago, Earth's atmosphere contained almost no free oxygen. Instead, it consisted mainly of carbon dioxide, perhaps as much as 100 times more carbon dioxide than contained in today's atmosphere. During this time, Earth's only life forms were aquatic, one-celled organisms -- primitive forms of bacteria -- that extracted energy from a variety of sources. To most of these organisms, free oxygen was poisonous. \n\nAt about the same time, new types of primitive bacteria evolved. Unlike their predecessors, these bacteria could convert energy directly from the Sun, through photosynthesis. One type, bluish-green organisms called cyanobacteria, used sunlight to convert carbon dioxide and water into glucose (sugar). These organisms expelled oxygen gas -- a by-product of photosynthesis -- into the oceans. \n\nAs the cyanobacteria multiplied and spread around the globe, they released more and more free oxygen into the oceans. This oxygen combined with the molecules of living bacteria, killing them off as it did so. It also combined with other matter, such as the iron dissolved in the ocean. Only after the oxygen combined with all of the matter available did free oxygen begin to accumulate in the oceans. And when the oceans became saturated with oxygen, it began to make its way into the atmosphere. \n\nOrganisms that don't need free oxygen to survive are called anaerobic; all living things that need free oxygen, including us, are aerobic organisms. As the oceans and atmosphere filled with oxygen gas, aerobic life evolved further, at some point adding a nucleus to the cell (to protect the cell's DNA from the harmful effects of oxygen) and eventually to multi-cellular organisms. Anaerobic life, on the other hand, was pushed back to areas where there was little or no oxygen. Today, anaerobic organisms like those that existed more than three and a half billion years ago live in oxygen-free places such as volcanic hot vents, where they get their energy in ways other than from carbon dioxide, water, and sunlight.\n\nIMPORTANCE OF OXYGEN\n\nCirculatory System, or cardiovascular system, in humans, the combined function of the heart, blood, and blood vessels to transport oxygen and nutrients to organs and tissues throughout the body and carry away waste products. Among its vital functions, the circulatory system increases the flow of blood to meet increased energy demands during exercise and regulates body temperature. In addition, when foreign substances or organisms invade the body, the circulatory system swiftly conveys disease-fighting elements of the immune system, such as white blood cells and antibodies, to regions under attack. Also, in the case of injury or bleeding, the circulatory system sends clotting cells and proteins to the affected site, which quickly stop bleeding and promote healing.\n\nRespiratory System, in anatomy and physiology, organs that deliver oxygen to the circulatory system for transport to all body cells. Oxygen is essential for cells, which use this vital substance to liberate the energy needed for cellular activities. In addition to supplying oxygen, the respiratory system aids in removing of carbon dioxide, preventing the lethal buildup of this waste product in body tissues. Day-in and day-out, without the prompt of conscious thought, the respiratory system carries out its life-sustaining activities. If the respiratory system’s tasks are interrupted for more than a few minutes, serious, irreversible damage to tissues occurs, followed by the failu
374341
because without air we all die ? ?
136486
Oxygen is the only gas we really need to breathe in order to stay alive. If we don't breathe oxygen (or if we don't breathe enough oxygen), we soon die. Interestingly enough, too much oxygen can be a bad thing also. At right is a diagram illustrating the range of oxygen concentrations that we can breathe safely. The green and red bar represents a scale of inspired oxygen partial pressures (PO2), ranging from zero oxygen on the left, to a PO2 of 2.0 ATA on the right. Through evolution, our bodies have become optimized to breathe oxygen at a partial pressure (PO2) of 0.21 ATA. If the inspired PO2 is much less than this, our bodies begin to shut down -- leading to unconsciousness when the PO2 drops below about 0.1 ATA (i.e., 10% oxygen at sea level). This is called hypoxia. Breathing more than 0.21 ATA oxygen is generally fine ... up to a point. If the inspired PO2 is maintained above about 0.5 ATA for prolonged periods of time (many hours to days), people begin to suffer what is usually referred to as "pulmonary" or "chronic" oxygen toxicity. The effects of this include a burning sensation or irritation in the lungs, and can affect breathing. Except for people who spend days under pressure at a time (e.g., commercial divers on oil rigs), this form of oxygen toxicity is not much of a problem for divers.\n\nHowever, as the inspired PO2 starts to climb above about 1.2 to 1.4 ATA, another kind of oxygen toxicity, called "CNS" (for "Central Nervous System") or "acute" oxygen toxicity, becomes a significant problem. Although a variety of subtle symptoms such as muscular twitching in the face and tunnel vision have been attributed to this kind of oxygen toxicity, the really important symptom is severe, uncontrolled convulsions. Although these convulsions do not appear to cause any sort of permanent damage by themselves, the problem of a diver experiencing such convulsions being able continue to hold a regulator in his or her mouth is obvious. More than a few divers have drowned underwater, apparently a result of oxygen-induced convulsions. This is perhaps the most serious and insidious of diving maladies, because it comes on unpredictably and without warning, and usually results in the death of the afflicted diver.\n\nThere is no clear understanding on the exact biochemical processes involved with CNS oxygen toxicity, nor is there a clear consensus on what the "safe" upper PO2 limit should be. Convulsions have occurred in divers breathing an inspired PO2 as low as 1.2 ATA, but such cases usually involve extenuating circumstances (such as medical conditions in the divers which pre-dispose them to convulsions). Conversely, commercial divers in Europe have routinely breathed oxygen partial pressures as high as 1.9 ATA in the water, and hyperbaric chamber facilities regularly expose patients to 2.8 ATA of oxygen (or more) without difficulty. Amid the ambiguities, two trends seem very consistent. The first is that high levels of exercise (perhaps more specifically, high levels of CO2 in the blood) appear to increase the probability of suffering from a convulsion. Secondly, divers immersed in water have a lower tolerance to elevated concentrations of inspired oxygen than do divers kept dry in a hyperbaric chamber or undersea habitat. (this over and above the fact that divers in a dry habitat are much more likely to survive a convulsion than are divers immersed in water). Another unavoidable reality regarding oxygen toxicity is the extreme range of variation both between individuals, and within a single individual.\n\nWhen immersed underwater, most divers regard a PO2 of 1.4 ATA as a safe upper limit during periods of physical exertion, and 1.6 ATA during periods of rest.
250668
Every day we live the body breaks down just a little bit more. We cannot live forever. The body can live for just so long on the garbage we feed it, the pollution in the air..water, and the fact that the oxygen we breath is not 100% therefore the body works hard to compensate ALL these things and still survive. Sorry.
280386
Well, there are alot of factors in this room to be considered.    People require more than just oxygen to breath.  Though roughly 20% of atmospheric air is oxygen, the remainder of the  gasses (and especially the ratio of these) also contribute to how the lung works.\n\nSo, if this room was previously full of air at normal atmospheric conditions, then only the oxygen removed, and the addition of oxygen from the "cylinder" brought it back to atmospheric conditions, then yes, people would be able to breath.
275570
You breathe in and out anywhere from 15 to 25 times per minute without even thinking about it. When you exercise, your breathing rate goes up -- again, without you thinking about it. You breathe so regularly that it is easy to take your lungs for granted. You can't even stop yourself from breathing if you try! \n\nYour lungs are complex organs, but what they do is take a gas that your body needs to get rid of (carbon dioxide) and exchange it for a gas that your body can use (oxygen). In this article, we will take a close look at how your lungs work and how they keep your body's cells supplied with oxygen and get rid of the carbon dioxide waste. We will explain some of the conditions and diseases that make breathing harder and cause the lungs to fail. We will also explain why you can't hold your breath for a long time and why you cough or hiccup. \n\nThere is alot more at this web site.  Good luck!\nhttp://science.howstuffworks.com/lung.htm
802733
Plants DO breathe oxygen, the same way we do. Respiration is the most effective energy producing process there is.\nPlants, however, can perform another process (photosynthesis) in which they take up CO2 and use the energy of sunlight to build up sugars and starches from this CO2. THEN they can use these starches in the process of respiration, the same way we do (we take sugars and "use" oxygen to take out the energy contained in them)\nSo the only difference betwen us and plants is that they make their own fuel out of CO2 , but we must eat it. But we both breathe oxygen in order to get the energy out of it.\nAs to why the don't breathe hydrogen... you'd have to ask god.... but normally when hydrogen combines with things it requires energy instead of giving rise to it, so it wouldn't be too advantageous\nSo it's not that we produce the CO2 so plants can live. Plants could live without animals, we're the parasites here hehehehe
148125
Respiration is the process by which an organism obtains energy by reacting oxygen with glucose to give water, carbon dioxide and ATP (energy). Respiration is commonly confused with breathing, but they are not the same. Respiration takes place on a cellular level whereas breathing is on a different level. Respiration takes place in the mitochondria of the cells and provide the cells with energy.\n\nRespiration also takes place in plants, where they respire the products of photosynthesis - oxygen and glucose to give energy, water and carbon dioxide. The chemical process involved is identical to burning in that oxygen reacts with carbon-based substances releasing energy. Unlike burning, respiration is slower and more controlled.
462306
like all natural things there is a resource of oxygen stored in our boby in form of water... if the body is short of oxygen the body tries to convert water into oxygen thus stop from dieing... \n\nwhen you hold your breath initially there is a shortage of air in the body you get unconscious during this period the body starts to convert some amount of water into oxygen... and waits for our body to get external air... \n\nthis is a slow process and if your body is not strong enough to resist... then you can even die immediately...
412032
Male is 77.64 years\nFemale 83.52 years\n\nAverage person breaths around 600,000,000 times in a lifetime \n(although this assumes 15 breaths/min and an average lifespan of 75 years)
225986
I'm going with B on this one.  The pulmonay arteries are taking deoxygenated blood away from the heart to the lungs to pick up O2 and drop off CO2.  This would mean that this blood is as full of CO2 as it can be in the body - at least in healthy people.\n\nC, the pulmonary arteries have just dropped off their CO2, so they don't have much. Not it.\n\nD, I think if the PCO2 were higher here than in the blood, then CO2 would diffuse out of the lungs and into the blood. Not it.\n\nE, The CO2 from the interstitial fluid is always diffusing into the veinous blood.  It's kept at a fairly constant rate, so that's probably not it.\n\nA, this could be the answer.  Honestly I don't know the PCO2 of the atmospheric air, but it would make sense to me that it's lower than what's in the pulmonary arteries because, again, CO2 that you breathed in would diffuse INTO the blood instead of out of it.
897803
It depends on where CPR take place. \nIf it is happening outside of hospital, it's impossible to get 100% oxygen. \nAnd if a person breathes 100% oxygen for long time,it can damage your body. \nAnd under some situations, you need to give low oxygen concentration to keep patient alive, e.g., in some chronic obstructive pulmonary disease(COPD) patients., high concentratin oxygen can kill them.\n{Carbon dioxide in the air can help to stimulate the respiratory center of the brain (which is life saving for some COPD patients). Because they have low blood oxygen for long term,so their respiratory control center in the brain no longer react (to stimulate breathing) to low blood oxygen. Only increase in the blood carbondioxide can stimulate their respiratory control center.}\nSo,100% oxygen is not the best for all.
668393
the answer is 6-10 minutes if u are healthy, the question was how long u can LIVE not stay conscious. therefore the body organs and cells can last from 6-10 minutes.furthermore 4-6 minutes without minutes without breathing the cells begin to deteriorate, then 6-10 minutes without breathing the cells begin to die. u can only be resucitated after 10 minutes ONLY if your core temperature is well below normal hypothermic.