BIOLOGY
STRUCTURE OF PROTEINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Carboxyl Group
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Amino Group
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Side Chain
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Ester Group
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Detailed explanation-1: -What is an amino acid? An amino acid is an organic molecule that is made up of a basic amino group (−NH2), an acidic carboxyl group (−COOH), and an organic R group (or side chain) that is unique to each amino acid.
Detailed explanation-2: -Answer and Explanation: The answer is D) sterol. Amino acids have a general structure that is made up of the alpha-amino group, the alpha-carboxylic group, the side chain or known as R-group, and a central carbon. Sterol is not a component of an amino acid molecule.
Detailed explanation-3: -Amino acids are molecules containing an amine group, a carboxylic acid group, and a side-chain that is specific to each amino acid. The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen.