Starch is a mix of 2 different polysaccharides:1) Amylose: a long chain of α-glucose monomers joined by 1,4-glycosidic bonds. 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 ...

In addition, the chains in starch and glycogen have a branched structure, i.e. each chain can fork into two. Cellulose on the other hand, is a polymer of beta glucose, and so the polymer forms straight/linear, unbranched chains. These differences in structure underly the different functions of these molecules.

In cellulose, alternate glucose monomers are rotated 180 degrees, allowing for an overall straight shape in the molecule, allowing structural conformity and rigidity (cellulose provides structural support in the cell wall).Starch contains branching with branches joined by 1-6 glycosidic bonds: again maximises available space for glucose storage ...

Starch is a polysaccharide of alpha glucose. It is made up of amylose and amylopectin. It forms a branched structure to allow it to be compact, this is due to the fact it contains 1-4 and 1-6 glycosidic bonds.

One feature is its compact shape. Starch molecules consists of two components: Amylose and Amylopectin. Amylose is the straight chained part and amylopectin is the branch chained part. Both these structures enable the starch molecule to coil into a compact shape so that it takes the least possible space and is ideal for storage.

Describe the molecular structure of starch. There are 2 types; amylose and amylopectin which are both made of alpha glucose and are tightly coiled. while amylopectin has branches and 2 bonds, 1-4 and 1-6 glycosidic bonds, amylose only has 1-4 glycosidic bonds.

Glycogen, sometimes referred to as “animal starch” is made up from many glucose molecules, joined together by 1,4 and 1,6 glycosidic bonds. It has a branched structure that is directly linked with its ability to release a big amount of energy in very little time as it is required in animal tissues such as muscles or liver tissues.

Both are insoluble in water.Differences (up to 2 marks, 1 mark each): Starch involves alpha glucose whereas cellulose involves beta glucose. Starch also contains 1,6 glycosidic bonds whereas cellulose only contains 1,4 glycosidic bonds. Starch forms a coiled/helical structure whereas cellulose forms a linear fibre.

Two ways in which both starch and cellulose are similar in regards to structure are that they are both made up of monosaccharides and contain glucose.Two ways in which starch and cellulose differ in structure is that starch is made up of alpha glucose whereas cellulose is made up of beta glucose and starch has a branched structure whereas ...

How does the structure of glycogen relate to its function? Glycogen is a polysaccharide with many branches, these branches increase the available surface area for enzymes to hydrolyse the substrate. glycogen is used as a storage of glucose which allows for fast energy release when needed and is present in muscle tissue.