BIOMOLECULES AND ENZYMES

Detailed explanation-1: -We can use a special reagent called Benedict’s solution to test for simple carbohydrates like glucose. Benedict’s solution is blue but, if simple carbohydrates are present, it will change colour – green/yellow if the amount is low and red if it is high.

Detailed explanation-2: -Benedict’s solution can be used to test for the presence of glucose in urine. When glucose is mixed with Benedict’s reagent and heated, a reduction reaction causes the Benedict’s reagent to change color. The color varies from green to dark red (brick) or rusty-brown, depending on the amount of and type of sugar.

Detailed explanation-3: -Principle of Benedict Test The alkaline sodium carbonate present converts the sugar into a strong reducing agent called enediols. During the occurrence of the reduction reaction, the mixture changes its colour from blue to brick-red precipitate because of the formation of cuprous oxide Cu2o.

Detailed explanation-4: -Answer and Explanation: Benedict’s solution is blue. After substances are added and the solution is heated it will turn yellow, orange, or brick red if the solution contains simple sugars including monosaccharides and reducing disaccharides.

Detailed explanation-5: -These are simple carbohydrates with unbound aldehyde or ketone groups. In lab, we used Benedict’s reagent to test for one particular reducing sugar: glucose. Benedict’s reagent starts out aqua-blue. As it is heated in the presence of reducing sugars, it turns yellow to orange.