Question

Regarding catalytic cycle of an enzyme action, select the correct sequential steps :
A. Substrate enzyme complex formation. 
B. Free enzyme ready to bind with another substrate. 
C. Release of products. 
D. Chemical bonds of the substrate broken. 
E. Substrate binding to active site. 
Choose the correct answer from the options given below :

• A. E, A, D, C, B
• B. A, E, B, D, C
• C. B, A, C, D, E
• D. E, D, C, B, A

Answer 1

The Correct Option is A

The correct order of steps in the catalytic cycle of enzyme action is: 

1. Substrate binding to active site (E). 

2. Substrate-enzyme complex formation (A). 

3. Chemical bonds of the substrate are broken (D). 

4. Release of products (C). 

5. Free enzyme ready to bind with another substrate (B). 

Thus, the correct sequence is: E, A, D, C, B