Answer:
Each enzyme molecule
has an active site for specific binding of substrate molecules .Theenzyme work
by altering the activation energy of the reaction.
The catalytic site
of an enzyme can be described as follows
(i) The
substrate process to the active site of the enzyme, fitting into it.
(ii) Binding
of the substrate induces the enzymes to alter its shape leading to formation
ofthe Enzyme Substrate (ES) complex.
(iii) The
active site of the enzyme, now is in close proximity with the substrate and
break its chemical bonds and a new enzyme product complex is formed.
(iv) The
enzyme releases the products of the reaction and the free enzyme is ready to
bindto another molecule of substrate and run through the catalytic cycle once
again.
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