Carbohydrates :: essays research papers

IntroductionCarbohydrates are molecules that contain Carbon, Hydrogen, and Oxygen. The most basic sugar- lucre is the monosaccharide. Carbohydrate molecules are categorized by the number of carbons present in the molecule. Glucose, the most common monosaccharide has six carbons per molecule, which is called a hexose. Carbohydrates also consent a 21 hydrogen to oxygen ratio. This aids in the abridgement and hydrolysis reactions. A condensation reaction occurs when 2 monosaccharides join by the removal of H2O. During condensation synthesis one monosaccharide losses an OH and the another(prenominal) losses a H. As a result the two monosaccharides stick to by forming maltose a disaccharide with a by-product of a withdraw H2O. When three or more monosaccharides or monomer are involved in a condensation synthesis a polymer or polysaccharide is organize with a by product of water. Starch and Glycogen are two common chain polymers.Just as the removal of water joins carbohydrates tog ether via condensation synthesis, hydrolysis is the reaction using water to break apart Di and polysaccharide. A Di-saccharide is environ by sharing an oxygen with one hydrogen on for each one opposing side. When H2O is re-introduced via hydrolysis the two monomers in the disaccharide no longer deprivation to share one H2O, and as a result the opposing sides toady the OH and H and break apart. This reaction is a common theme in the digestion of complex carbohydrates.Experiment 3 rivulet for SugarsWe go out judge five varied solutions for presence or absence of reducing sugars using a premixed Benedicts reagent. These bloodsucking variable solutions go away be water, glucose , onion juice, potato juice, and starch suspension. When the Benidicts reagent is combine with sugars at a boiling temperature, a pretension reaction will occur. Our independent variable, Benidicts reagent color is blue.The negatively charged control will be the gang of water and Benidicts reagent. This sample will undergo all the steps of the test except for the one being tested for i.e. sugars. If the end result is negative color change (blue) , it will thus be determined that the experimentation and the Benidicts reagent is not contaminated and the experiment may proceed. The negative control will also serve as a comparison to gauge against the color change in the other four sugar tests.EXPERIMENT 3 Test for Sugars TESTS MAT. & METHODS HYPOTHESIS RESULTSTube 1 1cm water+2cm Benidicts reagent. No color changeNegative control no color change. Neg-sugar. BlueTube 2 1cm glucose solution+ 2cm Benidicts reagent.