Multiple Choice
Which plasma protein is essential for blood coagulation?
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1. Introduction to Biochemistry
Proteins
Multiple Choice
In the context of proteins, what is the monomer (basic building block) of a protein?
A
An amino acid
B
A nucleotide
C
A fatty acid
D
A monosaccharide
Verified step by step guidance1
Understand that proteins are large biomolecules made up of smaller units called monomers.
Recall that the monomers of proteins are the building blocks that link together to form the protein chain.
Identify the common monomers involved in biological macromolecules: amino acids for proteins, nucleotides for nucleic acids, fatty acids for lipids, and monosaccharides for carbohydrates.
Recognize that the monomer specific to proteins is the amino acid, which contains an amino group, a carboxyl group, a hydrogen atom, and a distinctive side chain attached to a central carbon.
Conclude that the correct answer is 'An amino acid' because it is the fundamental unit that polymerizes to form proteins.
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