Multiple Choice
Which of the following functional groups is commonly found in amino acids?
2. Molecular Representations
Functional Groups
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Which of the following functional groups is commonly found in amino acids?
A
Alkyl group
B
Carbonyl group
C
Carboxyl group
D
Hydroxyl group
Verified step by step guidance1
Understand the structure of amino acids: Amino acids are organic compounds that serve as the building blocks of proteins. They typically contain two key functional groups: an amino group (NH₂) and a carboxyl group (COOH).
Identify the functional groups listed in the problem: The options given are alkyl group, carbonyl group, carboxyl group, and hydroxyl group.
Define each functional group: An alkyl group is a hydrocarbon chain, a carbonyl group is a C=O group, a carboxyl group is a COOH group, and a hydroxyl group is an OH group.
Recognize the functional group commonly found in amino acids: The carboxyl group (COOH) is a defining feature of amino acids, as it is part of the structure that allows them to link together to form proteins.
Conclude that the carboxyl group is the correct answer: Based on the structure of amino acids, the carboxyl group is the functional group commonly found in amino acids.
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