Question

A segment of 20 amino acids from a protein chain may be called a: tripeptide dipeptide polypeptide enzyme

Answer 1

A segment of 20 amino acids from a protein chain is called a polypeptide.

Peptides and proteins

Peptides are biomolecules consisting of short chains of amino acids liked by covalent peptide bonds. When the chain has 2 amino acids, it is called a dipeptide ('di' meaning 'two'); when it has 3 amino acids it receives the name of tripeptide ('tri' meaning 'three').

A polypeptide, however, is much longer, as it has 20 or more amino acids in its chain and can be considered a polymer of amino acids.

When one or more polypeptides are also folded into a stable structure by non-covalent bonds, that is called a protein.

Proteins have many, many functions. The ones that can accelerate chemical reactions are called enzymes.

Learn more about proteins here: brainly.com/question/927510

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