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Role of enzyme in reactions :
A
Decrease activation energy
B
Increase activation energy
C
Inorganic catalyst
D
None of the above
Detailed Solution
Enzymes are biological catalysts (mostly proteins, not inorganic). They form an enzyme–substrate complex and provide an alternative pathway with a lower activation energy.
This greatly increases the rate of the reaction without changing its equilibrium or $\Delta G$.
So the role of an enzyme is to decrease the activation energy.
This greatly increases the rate of the reaction without changing its equilibrium or $\Delta G$.
So the role of an enzyme is to decrease the activation energy.