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How does the structure of starch relate to its function?

The chain coils in a spiral shape, held together by hydrogen bonds. This shape makes starch well suited to energy storage as it is compact, so takes up little space in the cell, and not very soluble in water, so does not affect the water potential of the cell. Therefore amylopectin can provide a rapid supply of energy.

How does the structure of glucose relate to its function?

Glucose exists as a single molecule or a monosaccharide. Its molecular structure exists as a six carbon molecule with twelve hydrogen molecules attached and six oxygen molecules(C6H12O6). So you see, the structure has something to do with how the molecules taste. But they both still finction as sweeting agents.

What is the advantage of the many branched structure of glycogen?

The branching of glycogen is an important feature of the molecule metabolically as well. Since glycogen is broken down from the “ends” of the molecule, more branches translate to more ends, and more glucose that can be released at once. Liver and skeletal muscle are primary sites in the body where glycogen is found.

Three important polysaccharides, starch, glycogen, and cellulose, are composed of glucose. Starch and glycogen serve as short-term energy stores in plants and animals, respectively. The glucose monomers are linked by α glycosidic bonds. Glycogen and starch are highly branched, as the diagram at right shows.

What is the structure and function of starch and cellulose?

Starch can be straight or branched and is used as energy storage for plants because it can form compact structures and is easily broken down. In cellulose, molecules are connected in opposite orientations. Cellulose is found in cell walls and gives plant cells protection and structure.

What is the main structural difference between starch and cellulose?

There is only one difference. In starch, all the glucose repeat units are oriented in the same direction. But in cellulose, each succesive glucose unit is rotated 180 degrees around the axis of the polymer backbone chain, relative to the last repeat unit.