An example of a protein with a quaternary str | vedclass

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(B) The quaternary structure of a protein refers to the arrangement of multiple folded protein subunits in a multi-subunit complex.$1$. Myoglobin cons

Vedclass · Accepted Answer

Haemoglobin

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(B) The quaternary structure of a protein refers to the arrangement of multiple folded protein subunits in a multi-subunit complex.$1$. Myoglobin consists of a single polypeptide chain and exhibits a tertiary structure.$2$. Haemoglobin is a classic example of a protein with a quaternary structure,as it is composed of four polypeptide subunits ($2$ alpha and $2$ beta chains).$3$. Keratin is a fibrous protein that primarily exhibits a secondary structure (alpha-helical structure).Therefore,the correct answer is Haemoglobin.

Column-$I$	Column-$II$
$A$. Trypsin	$(i)$ Fights infectious agents
$B$. $GLUT$-$4$	$(ii)$ Is an intercellular ground substance
$C$. Collagen	$(iii)$ Works as an enzyme
$D$. Antibody	$(iv)$ Enables glucose transport into cells

An example of a protein with a quaternary structure is

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Match the compounds of Column-$I$ with their function in Column-$II$.
Column-$I$ Column-$II$
$A$. Trypsin $(i)$ Fights infectious agents
$B$. $GLUT$-$4$ $(ii)$ Is an intercellular ground substance
$C$. Collagen $(iii)$ Works as an enzyme
$D$. Antibody $(iv)$ Enables glucose transport into cells

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