Which or the following substances is a polypeptide?
Answer Details
A polypeptide is a polymer made up of amino acids, which are linked by peptide bonds. Therefore, the substance that is a polypeptide is protein.
Starch and glycogen are both polysaccharides, which are polymers made up of monosaccharides, such as glucose. They are not polypeptides.
Fats are lipids, which are molecules that are not made up of repeating units of the same type of monomer. They are not polypeptides.
Proteins, on the other hand, are made up of long chains of amino acids linked by peptide bonds, forming polypeptides. So, protein is the correct answer to the question.