Question

Match the major class of enzyme with the reaction they catalyze:
A. 1 (Oxidoreductases)
B. 2 (Transferases)
C. 3 (Hydrolases)
D. 4 (Lyases)
Match with the following reactions:
I. Transfer of functional group to water
II. Oxidation-reduction
III. Group transfer
IV. Addition or removal of group to form a double bond
Choose the correct answer from the options given below:

• A. A - I, B - II, C - III, D - IV
• B. A - II, B - III, C - I, D - IV
• C. A - III, B - II, C - I, D - IV
• D. A - IV, B - III, C - II, D - I

Hint:

Enzyme classes:
1: Oxidoreductases (redox).
2: Transferases (group transfer).
3: Hydrolases (hydrolysis).
4: Lyases (addition/removal).
5: Isomerases (isomerization).
6: Ligases (ligation).

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Enzymes are classified into six major classes based on the reactions they catalyze.
Each class has a specific type of reaction.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the enzyme classification.

Step 3: Detailed Explanation:
Oxidoreductases (Class 1): catalyze oxidation-reduction reactions (A-II).
Transferases (Class 2): catalyze group transfer reactions (B-III).
Hydrolases (Class 3): catalyze hydrolysis reactions (transfer of group to water) (C-I).
Lyases (Class 4): catalyze addition or removal of groups to form double bonds (D-IV).
Thus, A-II, B-III, C-I, D-IV is the correct matching.

Step 4: Final Answer:
The correct matching is A-II, B-III, C-I, D-IV.
Hence, the correct option is (B).