99 Percentile Qs Bank for JEE MainChemistryBiomolecules
Assertion (A): The denaturation of proteins can destroy all 1 ° , 2 ° and 3 ° protein structures. Reason (R): Curdling of milk is due to denaturation of proteins. The correct option among the following is
Options
- A(A) is true, (R) is true and (R) is the correct explanation for (A)
- B(A) is true, (R) is true but (R) is not the correct explanation for (A)
- C(A) is true but (R) is false
- D(A) is false but (R) is true
Correct answer
D. (A) is false but (R) is true
Step-by-step solution
Protein found in a biological system with a unique three-dimensional structure and biological activity is called a native protein. When a protein in its native form, is subjected to physical change like change in temperature or chemical change like change in pH, the hydrogen bonds are disturbed. Due to this, globules unfold and helix get uncoiled and protein loses its biological activity. This is called denaturation of protein. The coagulation of egg white on boiling is a common example of denaturation. Another exa