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Definitions from WordNet

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Definition: A carbonyl group is a functional group consisting of a carbon atom double-bonded to an oxygen atom. It is commonly found in organic compounds and is represented by the chemical formula "C=O".

Senses and Usages:

1. In Organic Chemistry: The carbonyl group is one of the most important functional groups in organic chemistry. It is found in various compounds such as aldehydes and ketones, where it imparts unique chemical properties.
2. In Biochemistry: Carbohydrates, nucleic acids, and proteins often contain carbonyl groups that play crucial roles in their structure and function. For example, the carbonyl group in sugar molecules determines their classification as either aldoses or ketoses.

Sample Sentences:

1. The presence of a carbonyl group in ketones makes them more reactive than alkanes.
2. Carbonyl groups in proteins participate in various enzymatic reactions, influencing their catalytic activity.
3. Aldoses and ketoses can be distinguished based on the position of the carbonyl group in their molecular structure.

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