NEETBotanyBiomolecules (B)
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Enzymes that catalyse the cleavage of C - C , C -halide or P - N bonds by the addition of water are classified as lyases. Reason (R): Lyases catalyse the removal of groups from substrates by mechanisms other than hydrolysis, leaving double bonds. In the light of the above statements, choose the mos
Options
- ABoth (A) and (R) are true and (R) is the correct explanation of (A)
- BBoth (A) and (R) are true but (R) is not the correct explanation of (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
Assertion (A) is false because enzymes that catalyse the cleavage of bonds such as C - C , C -halide or P - N by the addition of water (hydrolysis) are classified as hydrolases, not lyases. Reason (R) is true because it correctly states the definition of lyases. Lyases catalyse the removal of groups from substrates by mechanisms other than hydrolysis, leaving double bonds. Therefore, (A) is false but (R) is true. Answer: (A) is false but (R) is true