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Iodine. It will become dark black, or purple.

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Inulin is a polysaccharide composed entirely of fructose units.Which test be used to identify the presence of fructose?

The presence of fructose can be identified using a Benedict's test. Benedict's reagent can detect reducing sugars like fructose by forming a colored precipitate when reacted with the sugar in a heated solution. This forms a qualitative test to confirm the presence of fructose.


Where is the energy I a polysaccharide stored?

The energy in a polysaccharide is stored within the chemical bonds between the glucose molecules that make up the polysaccharide. When these bonds are broken through processes like digestion, the stored energy is released and can be utilized by the body for various functions.


Do Iodine tests for polysaccharides?

Yes, iodine can be used to test for the presence of polysaccharides. When iodine comes into contact with certain polysaccharides like starch, it can form a blue-black complex, indicating the presence of the polysaccharide.


Which colour indicate a negetive test when starch is absent?

A negative test for the presence of starch is indicated by a color change to yellow or light brown when iodine is added. This change occurs because iodine does not form a complex with starch in the absence of the polysaccharide, resulting in a different color reaction.


What are the differences between polycarbohydrate and polysaccharide?

The term "polycarbohydrate" is not commonly used in scientific literature and may not have a specific meaning. "Polysaccharide" refers to a polymer made up of multiple sugar molecules, such as starch or cellulose. Polysaccharides play important roles in energy storage, structural support, and cell recognition in organisms.