Multiple Choice
What type of bond joins amino acids into proteins?
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4. Biomolecules
Proteins
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Which of the following are secondary structures in proteins?
A
Tertiary structure
B
Beta pleated sheet
C
Quaternary structure
D
Alpha helix
Verified step by step guidance1
Understand that proteins have different levels of structure: primary, secondary, tertiary, and quaternary.
Primary structure refers to the sequence of amino acids in a protein.
Secondary structure involves the local folding of the protein chain into specific patterns, primarily alpha helices and beta pleated sheets.
Tertiary structure is the overall 3D shape of a single protein molecule, formed by interactions between secondary structures.
Quaternary structure refers to the arrangement of multiple protein molecules or subunits in a multi-subunit complex.
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