is co2or energy the by product of human respiration?
365800
no. It is byproduct of respiration of trees.
913189
Aerobic respiration requires, of course, oxygen to proceed. After glucose breaks down into two molecules of pyruvate (glycolysis), the pyruvate enters the mitochondria to take part in the citric acid cycle (aka. krebs cycle). The krebs cycle makes energy in the form of ATP, NADH, and FADH2. NADH and FADH2 are high energy electron carriers that make more ATP in the electron transport chain, which happens in the inner mitochondrial membrane and uses oxygen as a final electron acceptor. Thus, you can get about a 36-38 ATP yield from aerobic respiration. Comparatively, anaerobic respiration happens without oxygen and only produces 2 ATP molecules per glucose. This happens through fermentation, which produces lactate/lactic acid in humans (so it's not that great, since it causes sore muscles, etc.). Aerobic respiration produces much more energy than anaerobic repiration does, even though glucose is the starting point for both.
336167
oxygen and carbon dioxide
447378
in biology, the exchange of carbon between living organisms and the nonliving environment. Inorganic carbon dioxide in the atmosphere is converted by plants into simple carbohydrates, which are then used to produce more complex substances. Animals eat the plants and are then eaten by other animals. When these life forms die, they decay, breaking down into, among many other things, carbon dioxide, which returns to the atmosphere. Plants and animals also release carbon dioxide during respiration. Animals and some microorganisms require the carbon-containing substances from plants in order to produce energy and as a source of materials for many of their own biochemical reactions; this cycle is vital to them. The process of incorporating carbon dioxide into the molecules of living matter is called fixation. Nearly all carbon dioxide fixation is accomplished by means of photosynthesis, in which green plants form carbohydrates from carbon dioxide and water, using the energy of sunlight to drive the chemical reactions involved. Green plants use carbohydrates to build the other organic molecules that make up their cells, such as cellulose, fats, proteins, and nucleic acids. Some of these compounds require the incorporation of nitrogen (see nitrogen cycle). When carbohydrates are oxidized in cells they release the energy stored in their chemical bonds, and some of that energy is also used by the cell to drive other reactions. In the process of oxidation, or respiration, oxygen from the atmosphere (or from water) is combined with portions of the carbohydrate molecule, producing carbon dioxide and water, the compounds from which the carbohydrates were originally formed. However, not all of the carbon atoms incorporated by the plant can be returned to the atmosphere by its own respiration; some remain fixed in the organic materials that make up its cells. When the plant dies, its tissues are consumed by bacteria and other microorganisms, a process called decay. These microorganisms break down the organic molecules of the plant and use them for their own cell-building and energy needs; by their respiration more of the carbon is returned to the atmosphere. The carbon-containing molecules that an animal derives from consuming other organisms are reorganized to build its own cells or oxidized for energy by respiration, releasing carbon dioxide and water. When the animal dies it too is decayed by microorganisms, resulting in the return of more carbon to the atmosphere. Carbon-containing molecules in wood (or other dry, slow-decaying organic materials) may be oxidized by burning, or combustion, also producing carbon dioxide and water. Under conditions prevailing on earth at certain times, green plants have decayed only partially and have been transformed into fossil fuels–coal, peat, and oil. These materials are made of organic compounds formed by the plants; when burned, they too restore carbon dioxide to the atmosphere.
473886
If you have enough oxygen, your body uses aerobic respiration for its energy needs. Aerobic respiration produces carbon dioxide. Anaerobic respiration is reserved only for when you don't have enough oxygen to do aerobic respiration, which happens after you start to run a bit. Anaerobic respiration does not produce carbon dioxide. However, you also do aerobic respiration at the same time even after running a while, only less because you only have as much oxygen as you keep breathing in. So the answer is running, because aerobic respiration increases when you need the energy.
319118
All living organisms require energy to function. This energy may be obtained from the consumed foods. The most efficient way for cells to harvest energy stored in food is through cellular respiration, a catabolic pathway for the production of adenosine triphosphate, or ATP. ATP is a high-energy molecule and it is expended by working cells. The starting material of cellular respiration is the sugar glucose, which has energy stored in its chemical bonds. \n\nThere are actually two general types of respiration, aerobic and anaerobic. Aerobic respiration occurs in the presence of oxygen, while anaerobic respiration does not use oxygen. Both types of cell respiration begin with the process of glycolysis, after which the two diverge. \n\n\nAerobic respiration is more efficient and more complicated than anaerobic respiration. Aerobic respiration uses oxygen and glucose to produce carbon dioxide, water, and ATP. More precisely, this process involves six oxygen molecules for every sugar molecule:\n6O2 + C6H12O6 6CO2 + 6H2O + ATP (energy)\n\nAerobic respiration requires oxygen. However, some organisms live in places where oxygen is not always present. Similarly, under extreme exertion, muscle cells may run out of oxygen. Anaerobic respiration is a form of respiration that can function without oxygen.\n\nIn the absence of O2, organisms continue to carry out glycolysis, since glycolysis does not use oxygen in its chemical process. But glycolysis does require NAD+. In aerobic respiration, the electron transport chain turns NADH back to NAD+ with the aid of oxygen, thereby averting any NAD+ shortage and allowing glycolysis to take place. In anaerobic respiration, cells must find another way to turn NADH back to NAD+. \n\nThis “other way” is called fermentation. Fermentation’s goal is not to produce additional energy, but merely to replenish NAD+ supplies so that glycolysis can continue churning out its slow but steady stream of ATP. Because pyruvates are not needed in anaerobic respiration, fermentation uses them to help regenerate NAD+. While employing the pyruvates in this way does allow glycolysis to continue, it also results in the loss of the considerable energy contained in the pyruvate sugars. \n\nThere are two principle forms of fermentation: lactic acid fermentation and alcoholic fermentation. \n\nIn lactic acid fermentation, pyruvate is converted to a three-carbon compound called lactic acid: \npyruvate + NADH lactic acid + NAD+\n\nIn this reaction, the hydrogen from the NADH molecule is transferred to the pyruvate molecule. \n\nLactic acid fermentation is common in fungi and bacteria. Lactic acid fermentation also takes place in human muscle cells when strenuous exercise causes temporary oxygen shortages. Since lactic acid is a toxic substance, its buildup in the muscles produces fatigue and soreness. \n\nAnother route to NAD+ produces alcohol (ethanol) as a by-product:\n\npyruvate + NADH ethyl alcohol + NAD+ + CO2\n\nAlcoholic fermentation is the source of ethyl alcohol present in wines and liquors. It also accounts for the bubbles in bread. When yeast in bread dough runs out of oxygen, it goes through alcoholic fermentation, producing carbon dioxide. These carbon dioxide bubbles create spaces in the dough and cause it to rise. \n\nLike lactic acid, the ethanol produced by alcoholic fermentation is toxic. When ethanol levels rise to about 12 percent, the yeast dies.
964937
Cellular respiration is the process in which the chemical bonds of energy-rich molecules such as glucose are converted into energy usable for life processes. Oxidation of organic material—in a bonfire, for example—is an exothermic reaction that releases a large amount of energy rather quickly. The equation for the oxidation of glucose is:\n\nC6H12O6 + 6O2 → 6CO2 + 6H2O + Energy released (2830 kJ mol−1) \nIn a fire there is a massive uncontrolled release of energy as light and heat. Cellular respiration is the same process but it occurs in gradual steps that result in the conversion of the energy stored in glucose to usable chemical energy in the form of ATP. ATP is known as the universal currency because when the phosphoanhydride bonds in ATP are hydrolyzed in an exergonic reaction, the energy yield is 30kJ per mole under standard conditions. Waste products (CO2 + H2O) are released through exhaled air, sweat and urine.
176329
in respiration a cell turns glucose and Oxygen into waaste products CO2 and H20. That is why we breathe in oxygen and breathe out carbon dioxide. In photosynthesis a plant makes glucose and Oxygen from our waste products.
863625
Oxygen, Carbon Dioxide, and Water
198232
Respiration, Reproduction, Locomotion and Consumption
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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
319159
C and O2 is turned into CO2 by breathing\nCO2 is made into C (food) and O2 (byproduct) by photosynthesis in plants.
757424
In simplest terms, photosynthesis is an anabolic pathway and uses light energy to generate ATP which in turn is used for biosynthesis to make glucose storing the energy derived as glucose. It also consumes CO2 and produces O2. While respiration is a catabolic pathway deriving energy from complete metabolism of glucose to CO2 and water using oxygen in the process.
1050626
Nitrogen and oxygen make up around 99% of the total atm pressure. Carbon dioxide, water and other inert gases make up the other 1%. There is a graph called the Oxygen-Hemoglobin dissociation curve, and temp. carbon dioxide and blood pH can shift this curve to the left or right...increase in CO2 the curve shifts right, decrease it shifts left. So in tissues the CO2 levels are higher so the Red Blood Cells pick up CO2 easily and in the lungs the CO2 levels are lower than in the blood and O2 is picked up, and of course there is the Cl shift that occurs. CO2 is a byproduct of cellular respiration...energy production in the mitochondria...this is a long question to answer, there is more to it but I hope this helps.
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.
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All of the Carbon Dioxide emitted by all of the humans that ever lived on Earth doesn't equal even a percentage of that produced by one vocanic erruption.\n\nBlaming humans for Carbon Dioxide is like blaming an ant standing on your bathroom scale for your weight gain.
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Several points can be made but two will suffice for now.\n\n1. Carbon based does not only apply to humans but to every part of the biosphere (living part of the environment). Our whole ecosystem is based on carbon!\n\n2. Carbon IS as essential to life as Oxygen. What is the gas we give off when we exhale? CARBON dioxide! We must take in carbon to passit out.\n\nOur bodies "burn" sugars to get the energy our bodies neen to run. Guess what the main element in sugar is? Yes, you're right! CARBON! Carbon is in every cell of our bobies.