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kirill115 [55]
3 years ago
13

All amino acids that are found in proteins, except for proline, contain a(n); Group of answer choices amino group carbonyl group

ester group carboxyl group thiol group
Chemistry
1 answer:
Jobisdone [24]3 years ago
7 0

Answer:

amino group

Explanation:

There are twenty (20) amino acids in nature. Generally, each amino acid is structurally made up of a central carbon atom called alpha carbon attached to a hydrogen, carboxylic acid group (-COOH) and an amine group (-NH2). However, one particular amino acid called PROLINE posseses an exception to this.

Proline, which is the only cyclic amino acid, is also the only amino acid that forms a secondary amine group i.e. loss of hydrogen atoms in its amine group when in a protein structure. This means that when in a protein, PROLINE does not have an AMINE GROUP.

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