NEETChemistryBiomolecules
Match List-I with List-II. List-I List-II A. Primary structure (i) Uncoils or unfolds due to change in pH B. Secondary structure (ii) Remains intact even after boiling an egg C. Denaturation (iii) Protein with unique 3D structure and biological activity D. Native protein (iv) Results in loss of biological activity Choose the correct answer from the options given below:
Options
- AA-(ii), B-(i), C-(iv), D-(iii)
- BA-(i), B-(ii), C-(iv), D-(iii)
- CA-(ii), B-(i), C-(iii), D-(iv)
- DA-(iv), B-(i), C-(ii), D-(iii)
Correct answer
A. A-(ii), B-(i), C-(iv), D-(iii)
Step-by-step solution
A native protein is a protein found in a biological system with a unique three-dimensional structure and biological activity (D matches iii). When a native protein is subjected to physical or chemical changes (like boiling an egg or changing pH ), it undergoes denaturation. This results in the loss of biological activity (C matches iv). During denaturation, the secondary and tertiary structures are destroyed as the helix gets uncoiled and globules unfold (B matches i). However, the primary structure (the sequence o