At which level of organization does a protein | vedclass

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(D) Proteins are complex molecules that exhibit different levels of structural organization.- The $Primary$ structure refers to the linear sequence of

Vedclass · Accepted Answer

Quaternary

Vedclass · Answer

(D) Proteins are complex molecules that exhibit different levels of structural organization.- The $Primary$ structure refers to the linear sequence of amino acids.- The $Secondary$ structure refers to the folding of the polypeptide chain into shapes like $\alpha$-helices or $\beta$-pleated sheets.- The $Tertiary$ structure refers to the overall three-dimensional folding of a single polypeptide chain.- The $Quaternary$ structure refers to the arrangement of multiple polypeptide chains (subunits) into a single functional protein complex.Therefore,a protein consisting of more than one polypeptide chain requires the $Quaternary$ structure to become functional.

Column-$I$	Column-$II$
$(A)$ Immune protein	$(i)$ Haemoglobin
$(B)$ Pigment protein	$(ii)$ Chlorophyll
$(C)$ Involved in $O_2$ transport	$(iii)$ Melanin
$(D)$ Protein essential for photosynthesis	$(iv)$ Immunoglobulin
$(E)$ Protein for muscle contraction	$(v)$ Myosin

At which level of organization does a protein consisting of more than one polypeptide become functional?

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