NEETBotanyBiomolecules (B)
What is the ES complex in enzyme action?
Options
- AThe final product of the reaction
- BA short-lived intermediate state
- CThe substrate alone
- DThe enzyme-product complex
Correct answer
B. A short-lived intermediate state
Step-by-step solution
The ES complex is a short-lived intermediate state that is produced when the substrate binds to the active site of the enzyme. The substrate ‘S’ has to bind the enzyme at its ‘active site’ within a given cleft or pocket. The substrate has to diffuse towards the ‘active site’. There is thus, an obligatory formation of an ‘ES’ complex. E stands for enzyme. This complex formation is a transient phenomenon. During the state where substrate is bound to the enzyme active site, a new structure of the substrate called tran