A functional group works
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A functional group is a specific arrangement of atoms within a molecule that gives it its characteristic chemical properties. A molecule is a group of atoms bonded together, which may contain one or more functional groups. In other words, a functional group is a part of a molecule that determines its reactivity and behavior.
The main functional group found in cellulose is the hydroxyl (-OH) group, which repeats along the glucose molecules forming hydrogen bonds between cellulose chains. There are also acetal functional groups formed between glucose molecules through glycosidic linkages.
Cholesterol molecules contain a hydroxyl group (-OH) as the main functional group. Additionally, cholesterol contains a steroid backbone, which is a specific type of functional group found in steroids.
The key difference between aldoses and ketoses lies in their functional groups. Aldoses have an aldehyde functional group at the end of the carbon chain, while ketoses have a ketone functional group in the middle of the carbon chain. This structural variation affects their chemical properties and reactivity.
Alkanols and alkanoic acids are soluble in water because they contain a hydroxyl (-OH) or carboxyl (-COOH) functional group, which can form hydrogen bonds with water molecules. The hydrogen bonds between the polar functional group and water allows these molecules to dissolve in water.
The functional group present in a triglyceride molecule is an ester group. This group is formed by the reaction between a glycerol molecule and three fatty acid molecules, resulting in the formation of three ester bonds.