Multiple Choice
In proteins, what is the monomeric unit that links together to form a polypeptide chain?
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1. Introduction to Biochemistry
Proteins
Multiple Choice
In biochemistry, a protein is best described as a chain of which type of monomers?
A
Amino acids linked by peptide bonds
B
Fatty acids linked by ester bonds
C
Nucleotides linked by phosphodiester bonds
D
Monosaccharides linked by glycosidic bonds
Verified step by step guidance1
Understand that proteins are macromolecules made up of smaller building blocks called monomers.
Recall that the monomers of proteins are amino acids, which are linked together to form a polypeptide chain.
Recognize that the linkage between amino acids in a protein is called a peptide bond, which is a covalent bond formed between the carboxyl group of one amino acid and the amino group of another.
Differentiate proteins from other biomolecules: fatty acids form lipids linked by ester bonds, nucleotides form nucleic acids linked by phosphodiester bonds, and monosaccharides form carbohydrates linked by glycosidic bonds.
Conclude that a protein is best described as a chain of amino acids linked by peptide bonds.
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