Multiple Choice
In proteins, what is the monomer unit that links together to form a polypeptide chain?
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1. Introduction to Biochemistry
Proteins
Multiple Choice
Proteins are polymers; what type of monomer subunit are proteins primarily made of?
A
Fatty acids
B
Nucleotides
C
Amino acids
D
Monosaccharides (simple sugars)
Verified step by step guidance1
Understand that proteins are large biological molecules made up of smaller repeating units called monomers.
Recall that the primary monomer subunits of proteins are amino acids, which link together via peptide bonds to form polypeptide chains.
Recognize that fatty acids are the monomers for lipids, nucleotides are the monomers for nucleic acids, and monosaccharides are the monomers for carbohydrates.
Identify that the correct monomer subunit for proteins is amino acids because they contain an amino group, a carboxyl group, and a unique side chain that determines protein structure and function.
Conclude that proteins are polymers made primarily of amino acid monomers.
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