Question

1. a long chain of amino acids linked by peptide bonds is called ____________ chain

1 pts.
a. amino - peptide
b. polymer
c. keratin
d. polypeptide
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Explanation:

A long chain of amino - acids linked by peptide bonds is defined as a polypeptide. Amino - peptide is not a standard term for such a chain. A polymer is a general term for a large molecule made of repeating units and is too broad here. Keratin is a type of protein, not the general term for an amino - acid chain.

Answer:

D. polypeptide