Enzymes | Mechanism of enzymes | Lock and key model | induce Model | NBF | federal board | FBISE

Lock and Key Model:
Description: The Lock and Key model proposes that enzymes have a rigid, pre-formed active site that perfectly complements the shape of the substrate molecule.
Key points:
Enzyme active site is shaped like a lock
Substrate molecule is shaped like a key
Substrate binds to active site with high specificity
Enzyme-substrate complex forms, facilitating catalysis
Limitations:
Does not account for flexibility in enzyme structure
Does not explain how enzymes can bind to multiple substrates
Induced Fit Model:
Description: The Induced Fit model proposes that enzymes have a flexible active site that changes shape to accommodate the substrate molecule.
Key points:
Enzyme active site is flexible and dynamic
Substrate binding causes conformational change in active site
Active site shapes itself to fit the substrate molecule
Enzyme-substrate complex forms, facilitating catalysis
Advantages:
Accounts for flexibility in enzyme structure
Explains how enzymes can bind to multiple substrates
Provides a more accurate representation of enzyme-substrate interactions
Note: The Induced Fit model is a more modern and widely accepted explanation of enzyme action.
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[@sheryarsheryar937]

Great lecture

[@Rehanakauser-ys7fl]

very good

[@madihaghafoor3916]

Good 👍

[@FAhadMughal-w2h]

Good❤

[@__Heart.OF.Darkness]

Thanks sir ❤

[@biolovers8653]

Most welcome