is co2or energy the by product of human respiration are u sure medic?
458711
CO2 is the byproduct as it is given out after energy is taken by burning the food in the tissues .energy is not the byproduct of respiration.it is the ultimate product due to which we get energy to sit in frnt of the computer.lol(xcuse the bad pun)
373695
oxygen is needed to convert glucose into energy.Without oxygen the body cant make energy without making lactic acid as well. Thats why you get stitches when you run out of breath. Didnt you pay attention in biology?
53262
O2 is an energy-rich oxidizing substance.  Sugar and fat are both energy-rich reducing substances.  When an oxidizer and a reducer react, electrons are exchanged, in what is called a redox reaction.  The redox reaction here creates CO2 and H2O, both of which are low-energy molecules.  The energy pulled out is used to make ATP (adenosine triphosphate), which fuels the body's activities.\n\nRespiration is where O2 is taken from the air and CO2 is released back in the air.  The epithelial tissue in the lungs is very, very thin, and there are many small blood vessels there which bring the blood close to the air.  O2 from the air is inhaled into the lungs, where it diffuses through the epithelium and into the bloodtream, and binds rather loosely to a substance called hemoglobin.  Likewise, the CO2 diffuses through the epitheluim and into your lungs, which you exhale. As the heart pumps, it pulls the oxygen-rich blood away from your lungs, toward the heart.  Then it is pumpmed out by the heart, going throughout the body to provide oxygen to the tissues.  As the hemoglobin goes to places deficient in oxygen, the oxygen will be released by the hemoglobin to supply the tissues.  Meanwhile, the CO2 byproduct in the tissues will bind to the hemoglobin (rather loosely) and be carried away.  After going past the tissues of the body, the blood, now oxygen poor, is returned to the heart, with a lot of CO2.  That blood is again pumped by the heart towards the lungs, and the exchange repeats all over again.
866727
Atmospheric carbon dioxide.
801862
In humans aerobic resp is responsible for most of our ATP production\n\nhowever we are not the only organisms to capitolise on oxygen\n\nAEROBIC means oxygen using\n\nmany bacteria are aerobic\n\nmany bacteria produce chemicals and amines which are usefull to us.\n\nan example being hormones and antibiotics\n\nendocrinologly depts use bacteria to produce hormones and antibiotics on an industrial scale to feed the growing need of each\n\nplasmids can be altered to make a bacteria species produce a required protein on large scales.\n\nGrowth hormone and many many vaccines are produced this way.(INDUSTRIAL, TECHNO and ECO)\n\nwithout these aerobic organsims and their modifiable plasmds we would not be able to produce hormones and anti bio's on an inndustrial scale.\n\nhence their significance
544375
In principle yes, but as in so much, principle doesn't govern this, much of the time. \n\nBreathing has two gross purposes. One is to intake ozygen, and the other is to exhale carbon dioxide. Air is about 20% oxygen, so the partial pressure of oxygen is about 1/5 atmosphere, or 1/5 x 30" of mercury or about 6" of mercury. Replacing air by pure oxygen at 6"Hg pressure, would be -- for the intake side -- not much of a change. Air ordinaryily has only a few percent partial pressure of CO2, so it would take much more than the existing and rising amount to interfere with exhaling metabolicly generated CO2.\n\nIncreasing the net oxygen pressure, to say 10"Hg pressure should increase intake efficiency and still greater partial  pressure should do more of the same. So one certainly wouldn't have to breath as much (or as fast) to get sufficient oxygen under such conditions. \n\nBut there are at least two problems with this. \n\nFirst, oxygen is rather reactive. At high enough pressures, it becomes poisonous. So there's a limit in that direction. \n\nAnd, second, for most people outside of the high mountains, the trigger for breathing is not insufficient oxygen, but the CO2 level in the blood. There is a sensor (in the throat) which tracks the CO2 level, and sends 'breathe now, breathe now, ...' signals to the brain when it goes above some value. There is an alternative sensor, tracking oxygen level, but it only comes into play at high altitudes and in any case it takes some time to make the changeover. \n\nCO2 levels are so important because dissovled CO2 ios not merely inert gas in solution. It is, in fact, a mild acid, and even small change in the acidity of body fluids can be fatal. Our biochemistry works best (and in some cases only works at all) when the pH (a measure of acidity) is within a very narrow range. It's very important to get rid of that CO2 promptly and effectively, lest you go into acidosis, which is very dangerous. \n\n======\nOxygen transport\n\nThere are two methods. The most dramatic is hemoglobin, a large molecule in red blood cells (turns them red, in fact), which changes shape slightly when it takes oxygen aborad and changes back when it releases it. Max Perutz and colleagues at Cambridge University took about a decade and a half to figure out the mechanism. And their research earned a Nobel Prize, too. This mechanism is somewhat insenstive to low partial pressures of oxygen.\n\nThe other mechanism is simply dissolving osygen molecules in blood fluid, and is driven by osmotic forces. More into the blood in paces with lots (ie, the lungs) and out in places where there is little oxygen around, as in the peripheral tissues perfused by capillaries. This method is entirely dependent on the partial pressure of oxygen in whatever mixture is being breathed.
290325
http://www.science.siu.edu/microbiology/micr201/chapter8N.html\n\nPotential Energy!  Check it out yourself at the link above.
145055
Aerobic respiration requires oxygen in order to generate energy. It is the preferred method of pyruvate breakdown from glycolysis and requires that pyruvate enter the mitochondrion to be fully oxidized by the Krebs cycle. The product of this process is energy in the form of ATP (Adenosine Triphosphate), by substrate-level phosphorylation, NADH and FADH2. The reducing potential of NADH and FADH2 is converted to more ATP via an electron transport chain with oxygen as the "terminal electron acceptor". Most of the ATP produced by cellular respiration is by oxidative phosphorylation, ATP molecules are made due to the chemiosmotic potential driving ATP synthase. Respiration is the process by which cells obtain energy when oxygen is present in the cell.\n\nTheoretically, 36 ATP molecules can be made per glucose during cellular respiration, however, such conditions are generally not realized due to such losses as the cost of moving pyruvate into mitochondria. Aerobic metabolism is rather more efficient than anaerobic metabolism. They share the initial pathway of glycolysis but aerobic metabolism continues with the Krebs cycle and oxidative phosphorylation. The post glycolytic reactions take place in the mitochondria in eukaryotic cells, and at the cell membrane in prokaryotic cells.\n\nGlycolysis\nMain article: Glycolysis \nGlycolysis is a metabolic pathway that is found in all living organisms and does not require oxygen. The process converts one molecule of glucose into two molecules of pyruvate, and makes energy in the form of two net molecules of ATP. Four molecules of ATP per glucose are actually produced but two are consumed for the preparatory phase. The initial phosphorylation of glucose is required to destablise the molecule for cleavage into two triose sugars. During the pay-off phase of glycolysis four phosphate groups are transfered to ADP by substrate-level phosphorylation to make four ATP and two NADH are produced when the triose sugars are oxidised. Glycolysis takes place in the cytoplasm of the cell. The overall reaction can be expressed this way:\n\nGlucose + 2 ATP + 2 NAD+ + 2 Pi + 4 ADP → 2 pyruvate + 2 ADP + 2 NADH + 4 ATP + 2 H2O + 4 H+ \n\nOxidative decarboxylation\nMain article: Oxidative decarboxylation \nProduces acetyl-CoA from pyruvate. This oxidation reaction also releases carbon dioxide as a product.\n\nKrebs cycle/Citric Acid cycle\nMain article: Citric acid cycle \nWhen oxygen is present, acetyl-CoA enters the citric acid cycle, and gets oxidised to CO2 while at the same time reducing NAD to NADH. NADH can be used by the electron transport chain to create further ATP as part of oxidative phosphorylation. To fully oxidise the equivalent of one glucose molecule two acetyl-CoA must be metabolised by the Krebs cycle. Two waste products, H2O and CO2 are created during this cycle, .\n\nOxidative phosphorylation\nMain articles: Oxidative phosphorylation , Electron transport chain , Electrochemical gradient, and ATP synthase\n\nIn eukaryotes, oxidative phosphorylation occurs in the mitochondria. It comprises of the electron transport chain that establishes a proton gradient (chemiosmotic potential) across the inner membrane by oxidising the NADH produced from the Krebs cycle. ATP is synthesised by the ATP synthase enzyme when the chemiosmotic gradient is used to drive the phosphorylation of ADP.\n\nTheoretical yields\nThe yields in the table below are for one glucose and molecule being fully oxidised to carbon dioxide. It is assumed that all the reduced coenzymes are oxidised by the electron transport chain and used for oxidative phosphorylation.
11177
Not really, no.  CO2 is carbon dioxide, and sodium is a light metal that usually exists as a highly soluble cation.
1076434
Aerobic respiration.\n\nThe key is the "presense of oxygen" part.  Burning sugars in the absense of oxygen is anaerobic respiration.\n\nPhotosynthesis is definately wrong.  That's the capture of photons to boost low-energy electrons for the purpose of making energy, and sugar.
433087
Aerobic respiration is the release of energy from glucose or another organic substrate in the presence of Oxygen. Strictly speaking aerobic means in air, but it is the Oxygen in the air which is necessary for aerobic respiration. Anaerobic respiration is in the absence of air.
1100315
It is carbon dioxide molecules produced devided by oxygen molecules consumed. In humans it is roughly 0.8
1025308
When you say activation energy I presume you're talking about the 2 ATP used? Those 2 ATP are part of the first step of aerobic respiration, glycolysis.\n\nIn glycolysis, we start with a molecule of glucose, C6H12O6\n1) 2 ATP are used\n2) 2 NADH are produced\n3) 4 ATP are produced\n4) 2 pyruvate are formed
916179
oxygen helps in breathing of the million cells in your body.Blood transfers oxygen to the cells & the cells can carry out their processes with help of oxygen.Since everything requires energy to carry on its processes,human require oxygen to carry out its process of living
779178
carbon dioxide or CO2, it's basically what you breathe out
863625
Oxygen, Carbon Dioxide, and Water
638140
probably carbon dioxide mostly