The peptide chains loop,twist and fold back o | vedclass

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(A) The tertiary structure of a protein represents the overall three-dimensional folding of the polypeptide chain.This structure is stabilized by vari

Vedclass · Accepted Answer

Disulphide

Vedclass · Answer

(A) The tertiary structure of a protein represents the overall three-dimensional folding of the polypeptide chain.This structure is stabilized by various interactions between the $R$-groups of amino acids,including hydrogen bonds,ionic bonds,hydrophobic interactions,and covalent $Disulphide$ bonds.Among the options provided,$Disulphide$ bonds are crucial for maintaining the stability of the tertiary structure by linking distant parts of the polypeptide chain together.

Column $X$	Column $Y$
$(1)$ Primary protein	$(P)$ Globular or fibrous form
$(2)$ Secondary protein	$(Q)$ Three-dimensional arrangement of a single polypeptide chain
$(3)$ Tertiary protein	$(R)$ Gene-controlled
$(4)$ Quaternary protein	$(S)$ Helical or pleated sheet form

The peptide chains loop,twist and fold back on themselves due to the formation of . . . . . . bonds to form a stable tertiary structure of protein.

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