객관식
How does the structure of a protein affect its function?
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4. Biomolecules
Proteins
객관식
Which of the following levels of structure is common to all proteins?
A
Primary structure
B
Quaternary structure
C
Secondary structure
D
Tertiary structure
검증된 단계별 안내1
Understand the levels of protein structure: Proteins have four levels of structure - primary, secondary, tertiary, and quaternary.
Define primary structure: The primary structure of a protein is its unique sequence of amino acids. This sequence is determined by the genetic code and is common to all proteins.
Explain secondary structure: Secondary structure refers to local folded structures that form within a polypeptide due to interactions between backbone atoms. Common examples include alpha helices and beta sheets.
Describe tertiary structure: Tertiary structure is the overall three-dimensional shape of a single polypeptide chain, formed by interactions between side chains of amino acids.
Clarify quaternary structure: Quaternary structure is the arrangement of multiple polypeptide chains into a single protein complex. Not all proteins have quaternary structure, as some function as single polypeptide chains.
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