Question
Chemistry Question on Enzymes
The lock and key model of enzyme action illustrates that a particular enzyme molecule
A
may be destroyed and resynthesised several times
B
interacts with q specific type of substrate molecule
C
reacts at identical rates under all conditions
D
forms a permanent enzyme-substrate complex
Answer
interacts with q specific type of substrate molecule
Explanation
Solution
Emil Fischer (1894) proposed lock and key theory for the mechanism of enzyme act ion according to which the active sites of enzyme have a specific geometric shape wherein the substrate molecules fit in just like a key in aparticular lock. In other words, it illustrates that a particular enzyme molecule interacts with a specific type of substrate molecule.