Fructose.
Water is one product of every dehydration synthesis.The reason is that during this kind of reaction, one molecule (say, of glucose) loses a hydrogen atom (H) and thus makes a bond available for reaction with another molecule (say, a second glucose). This second molecule loses a hydroxyl group (-OH) to make a bond available.The two reactant molecules can now combine, and the H and -OH themselves combine to form a molecule of water. Since the overall result is effectively a loss of water from the reactants, it is called dehydration.
Carbon, hydrogen and oxygen are the only elements that make up sugars.
Unequal sharing of electrons in a water molecule causes the molecule to be polar.
There are two atoms of Hydrogen in the molecule.
partical
Monosaccharides, such as glucose, sucrose, and galactose
Both sucrose and maltose have the same molecular formula, C12H22O11. What makes them different, however, is the structure these atoms take in the molecule.
glucose and fructose
Sucrose molecules are the ones that make up sugar cubes, sugar granules and powdered sugar.
Water is one product of every dehydration synthesis.The reason is that during this kind of reaction, one molecule (say, of glucose) loses a hydrogen atom (H) and thus makes a bond available for reaction with another molecule (say, a second glucose). This second molecule loses a hydroxyl group (-OH) to make a bond available.The two reactant molecules can now combine, and the H and -OH themselves combine to form a molecule of water. Since the overall result is effectively a loss of water from the reactants, it is called dehydration.
Effect of acid and heat on sugarSucrose (table sugar) is a disaccharide, meaning it is two simple sugars, glucose and fructose, that have reacted in such a way that they join together, losing a molecule of water in the process. A reaction that produces water is called a condensation reaction. The fructose acts like an acid, and donates a proton. The glucose acts like a base, and donates a hydroxide ion. The proton and the hydroxide ion combine to form water, and the two simple sugars combine to form sucrose.The reverse reaction, called hydrolysis, is where a water molecule is added to a molecule to break it into two parts. Hydrolysis of sucrose in water happens very slowly all by itself. But if an acid is added, it acts like a catalyst, promoting a faster reaction, but not getting used up in the process. Heating up the solution makes the reaction go even faster.The result of heating sucrose in water with a little lemon juice or vinegar in it is that much of the sucrose is converted into the two simple monosaccharides. Since fructose is a lot sweeter than sucrose, the result is a sweeter solution, even though glucose is not quite as sweet as sucrose. Since the acid is not used up, the solution is also a little tart, but that can be fixed by adding a weak base like egg whites or baking soda. If there are proteins in the solution, they can also react with the acid to neutralize it.
It makes the molecule polar
Carbon, hydrogen and oxygen are the only elements that make up sugars.
nucleus
C12H22O11 Sucrose and starch are the end products of photosynthesis. Sucrose, formed in the leaf cytosol, is transported through the phloem to the sink tissues where it is metabolized or stored in the vacuole. During the night, sucrose is formed from starch, produced and stored in the chloroplasts during the day.
fruit
It makes the molecule polar