Interpretation:
The different bonding arrangements in cellulose and starch give different properties.
The above statement should be explained.
Concept introduction:
A biological molecule which consists of carbon, hydrogen and oxygen is known as saccharide or carbohydrate. The general formula of saccharide is
Saccharides (sugar) are classified as: monosaccharides, disaccharides and polysaccharides.
Monosaccharides are defined as a simpler carbohydrate which contains one sugar molecule and can’t ne hydrolysed into smaller carbohydrate.
Disaccharides are defined as a saccharide which contains two sugar molecules that is when two monosaccharides are linked by glycosidic bonds. It is a double ring structure.
Polysaccharides are defined as a saccharide which contains many units of sugar molecules that is more than two monosaccharides are linked by glycosidic bonds.
Explanation of Solution
Starch consists of many units of monosaccharide as it is a
Cellulose consists of many units of monosaccharide or sugar as it is a polymeric carbohydrate which consists of various sugar units linked with glycosidic bonds.
The structures of both cellulose and starch are similar as both contains similar ring structures consist of carbon atoms, hydrogen atoms and oxygen atoms.
Now, the linear structure of cellulose results in the strong and rigid structure as linear structure allows the chain (molecule) to stick with each other whereas the starch consist of glucose units which makes them insoluble in water results in the storage reservoir for energy.
In case of cellulose, monosaccharides units (glucose) are linked linearly with each other tightly in form of bundles.
In case of starch, monosaccharides units (glucose) are arranged in branch a manner and no tight bundles are formed unlike cellulose.
Hence, different bonding arrangements of cellulose and starch results in different functions and properties.
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