Is it true that Glycogen contains only carbon, hydrogen and oxygen?
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No.  Both glycogen and triglyceride contains only carbon, hydrogen and oxygen\n\nGlycogen (commonly known as animal starch although this name is inaccurate) is a polysaccharide that is the principal storage form of glucose (Glc) in animal and human cells. Glycogen is found in the form of granules in the cytosol in many cell types. Hepatocytes (liver cells) have the highest concentration of it - up to 8% of the fresh weight in well fed state, or 100–120 g in an adult. In the muscles, glycogen is found in a much lower concentration (1% of the muscle mass), but the total amount exceeds that in liver. Small amounts of glycogen are found in the kidneys, and even smaller amounts in certain glial cells in the brain and white blood cells. Glycogen plays an important role in the glucose cycle.\n\nGlycogen is a highly branched polymer that is better described as a dendrimer of about 60,000 glucose residues and has a molecular weight between 106 and 107 daltons (4.8 million approx.). Most of Glc units are linked by α-1,4 glycosidic bonds, approximately 1 in 12 Glc residues also makes -1,6 glycosidic bond with a second Glc, which results in the creation of a branch. Glycogen does not possess a reducing end: the 'reducing end' glucose residue is not free but is covalently bound to a protein termed glycogenin as a beta-linkage to a surface tyrosine residue. Glycogenin is a glycosyltransferase and occurs as a dimer in the core of glycogen. The glycogen granules contain both glycogen and the enzymes of glycogen synthesis (glycogenesis) and degradation (glycogenolysis). The enzymes are nested between the outer branches of the glycogen molecules and act on the non-reducing ends. Therefore, the many non-reducing end-branches of glycogen facilitate its rapid synthesis and catabolism.\n\nTrigliceride: The chemical formula is CH2COOR-CHCOOR'-CH2-COOR", where R, R', and R" are long alkyl chains. The three fatty acids RCOOH, R'COOH and R"COOH can be all different, all the same, or only two the same.\n\nhttp://en.wikipedia.org/wiki/Alkyl\n\nhttp://upload.wikimedia.org/wikipedia/en/0/0d/Glycogen.png
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All life is composed of the elements carbon, oxygen, hydrogen and nitrogen at the very basis.  All plants only share the presence of chloroplasts, which convert visible light to ATP for energy.
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co2 is combined with water(h2o) and light to make glucose(c6h12o6), for food. This is a little simplified.
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the only products produce in krebs cycle are NADH,ATP, FADH &CO2
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Carbon combines with oxygen to form carbon dioxide and carbon monoxide. Carbon combines with water and oxygen to form carbohydrates. It does this because there is an energy advantage to do this; the end state is a lower energy state than the initial state.
551613
Glucose is important to the body because it is broken down into just water and carbon dioxide in the process of oxidative phosphorylation in the mitochondria of your cells-this requires oxygen..  This is where your body gets 95% of it's evergy-for example, runners use oxydative phosphorylation (aerobic energy) and can go steadily for 26 miles (or more)-while weightlifters when lifting use primarily anaerobic energy (without oxygen)-that only can give energy for a minute or so.  WIthout aerobic metabolism you would die in a few minutes.  So, glucose plus oxygen is where you get energy, and it happens in the mitochondria of cells.  Cyanide interfers with this reaction in the mitochondria, so that oxygen cannot be used to make energy (so cyanide primarily works against oxygen, but since it's glucose + oxygen that is burned to make the energy, is might as well work against glucose as well).  Burning glucose for energy using oxygen is exactly the same as burning fuel in a fire.  If you start a fire, but keep it from getting oxygen, it'll go out- cyanide starves your body of the oxygen, so *your* fire goes out.
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All organic substances contain Carbon. Many also contain oxygen and or hydrogen.
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Made up of two glucose isomers.\n\nEntirely carbon, oxygen and hydrogen
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Sucrose -- carbon, hydrogen, oxygen\nFat -- carbon, hydrogen, oxygen\nNitrogen -- carbon, hydrogen, oxygen, nitrogen (2 of the 20 commonly incorporated into protein contain sulfur)
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Six molucules of water + six molecules of carbondioxide to give you one molecule of sugar and six molecules of oxygen ie: "6H2O + 6CO2 ----------> C6H12O6+ 6O2" This happens only in the presence of a catalyst which is sun light.
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Sugar is sucrose, a molecule composed of 12 atoms of carbon, 22 atoms of hydrogen, and 11 atoms of oxygen (C12H22O11). \nThe 1st link is just general info, the 2nd may give you an idea for an experiment.
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This is basic biochemistry.  All cells (really, all bacteria, all fungi, all plants, all animals) use glucose or other simple sugars as a main source of fuel for energy generation.  (Some will argue that plants actually produce glucose, they both produce and consume it).  The process of glucose breakdown is glycolysis, and it generates energy in the form of ATP, and converts molecules such as NADH to NAD+.  This electron loss gets passed through the electron transport chain  in the mitocondria to generate more ATP.  \n\nCarbohydrates include complex and simple sugars.  Simple sugars can be broken down directly in cells, there are specific receptors that bring in the sugar.  Complex carbs such sucrose (a disaccryide, or a molecule containing two simple sugars) just contain more than one simple sugar in a chain.  They are broken down in the gut by specific enzymes that break the chain and release simple sugars.  Starch is a form of a carbohydrate, but not digestable to mammals, because we lack the enzyme to break it down.  Some bacteria don't though, and they live inside the gut of some mammals such as cows, and when cows eat grass, the starch is broken down by the bacteria and some of it is released into the gut.  So thats why mammalian herbavours exist.  \n\nFat metabolism.  Fats are long carbon chain connected at one end, usually three are connected to glycerol, this is called a triglyceride, and is a perferred form of storage.  Fats are broken down by chopping the carbon chain and generating energy.  Fat burning is slow and fat is a backup fuel source; the primary being simple sugars. \n\nProtein metabolism.  Proteins are digested by proteases in the gut, and the free amino acids are absorbed into the blood stream, where they can enter cells.  Cells can utilize amino acids for energy, but it's not that efficient.  Instead cells utilized amino acids for building new proteins; including the 'essential' amino acids, those that can't be generated by mammalian cells (we lack the enzymes).  So some amino acids are absolutely critical for our well-being.  \n\nLow carb diets simply don't have much carbs, and force the body to switch to fat to burn (in theory).  In reality it doesn't work too well.  During initial exercise, muscles use glycogen, a stored form of glucose, for energy. Also fat is utilized, and a bit of protein.  After 2 hours of exercise (or so, depending on the person), muscle glycogen is depleted, and body must use fat and glucose and protein.  If you do not intake glucose during this exertion, your performance will rapidly drop off; you can only burn so much fat at a time.  So the best advice for fat burning is exercise (at 60-70% max heart rate) for an hour or two, 3, 4x a week, and keep hydrated with water or gatoraid.  \n\nHigh carb diets make it easier for long term exercise by increasing the amount of muscle glycogen.
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C6H12O6 represents Glucose and Fructose. Go to http://images.google.com/images?q=Glucose%20structure
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there sugar groups\n\nDNA had no oxygen on carbon 2 so Deoxyribose\n\nand RNA does have an oxygen on carbon two Ribose\n\nanything with 'ose' denotes a sugar for example glucose fructose
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Glucose and proteins are not ions.
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Carbohydartes are made of carbon hence the formula C6H12O6 in short these carb are just sugars which are used in making ATP in your cells to provide energy for your body to work. ATP is made in glycoysis, krebs cycle, and ETC transport in your body
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Carbohydrates are broken down into glucose, the simplest sugar/carbohydrate. Proteins are broken down into amino acids and fats are broken down into fatty acids.