Question

How does an enzyme increase the rate of a reaction?
(A) by bringing the reacting molecules into precise orientation
(B) by increasing the rate of random collisions of molecules
(C) by shifting the point of equilibrium of the reaction
by supplying the energy required to start the reaction​

Answer 1

Answer:

Enzymes provide activation energy for the reactions they catalyze.

Catalysts lower the activation energy for reactions.  

The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

Explanation:

Answer 2

Answer:

option A is looking better in these

Explanation:

otherwise enzyme mainly does increase in rate by lowering activation energy

option b c d are not appropriate . most suitable is option A but sorry I'm not sure