How does temperature and pH affect activity of enzyme ?

How does temperature affects the extent of dissociation of an electrolyte ?

How does pH affects the rate of enzyme activity?

Read of the following statements and choose the option which has all the correct statements :- (a) Enzymes are highly specific to substrate (b) Enzymes require optimum temperature and pH for maximum activity. (c) Almost all enzymes are protein (d) Enzyme increase the activation energy Options :-

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What are optimum temperature and pH for the enzymes to act best ?

A : If temperature does not affect the rate of reaction , E_a=0 R : Lesser the activation energy, slower will be the reaction.

Statement-1 , If temperature does not affect the rate of reaction E_(a)=o . Because Statement-2 : Lesser is the activation energy, slower is the rate.