BiomoleculesMedium
Question
The correct statement about peptides and proteins is
Options
A.In $\beta$-pleated sheet structures, peptide chains are held together by intermolecular hydrogen bonds
B.In $\alpha$-helices, the polypeptide chain is twisted into a left-handed screw (helix) through intramolecular hydrogen bonds
C.Tertiary structure of proteins has two or more polypeptide subunits
D.Only the proteins having a quaternary structure are biologically active
Solution
Sol. [Key Concept: Structure of peptides and proteins]
In $\beta$-pleated sheet structure, peptide chains are held together by intermolecular hydrogen bonds.
This is only correct statement.
Remaining (2), (3) and (4) are incorrect statements.
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