Question:
During denaturation, which level of protein structure remains unchanged?
During denaturation, which level of protein structure remains unchanged?
Show Hint
Denaturation breaks hydrogen bonds and folding but not the peptide bonds of the primary structure.
Updated On: Oct 1, 2026
- primary
- secondary
- tertiary
- quaternary
Show Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept
Proteins have primary (amino acid sequence), secondary (helix or sheet), tertiary (3D fold) and quaternary (subunit assembly) structure.
Step 2: Detailed Explanation
Denaturation by heat, acids or alkalis disrupts hydrogen bonds, ionic interactions and other weak forces. So secondary, tertiary and quaternary structures change or are lost.
Covalent peptide bonds are not broken, so the primary structure remains intact.
Final Answer:
The primary structure remains unchanged, option (A). \[ \boxed{\text{Primary}} \]
Proteins have primary (amino acid sequence), secondary (helix or sheet), tertiary (3D fold) and quaternary (subunit assembly) structure.
Step 2: Detailed Explanation
Denaturation by heat, acids or alkalis disrupts hydrogen bonds, ionic interactions and other weak forces. So secondary, tertiary and quaternary structures change or are lost.
Covalent peptide bonds are not broken, so the primary structure remains intact.
Final Answer:
The primary structure remains unchanged, option (A). \[ \boxed{\text{Primary}} \]
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- The temperature of $32^{\circ}C$ is equivalent to
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
- If a metal crystallises in bcc structure with edge length of unit cell $4.29 \times 10^{-8}\, cm$ the radius of metal atom is
- Which of the following oxides can act both as an oxidising agent as well as reducing agent ?
- "The mass and energy both are conserved in an isolated system", is the statement of
View More Questions
Top MHT CET Structure Of Proteins Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions