Read the following statements.
a) Enzymes are biological catalysts which influence the speed of biochemical reactions.
b) All enzymes are proteins except ribozyme.
c) Carbonic anhydrase accelerate reaction 10 million times.
d) The active site of enzyme breaks chemical bonds of substrate to form enzyme product (EP) complex.
e) In an exothermic or endothermic reaction the substrate must go through a much higher energy state, it is called transition state energy.
How many are correct?

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Four

Three

Two

Five

answer is A.

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Detailed Solution

All five are correct.

Enzymes are biological catalysts which influence the speed of biochemical reactions. Example, carbonic anhydrase accelerate carbonic acid formation from CO₂ and water 10 million times. Generally all enzymes are proteins except ribozyme. Ribozymes are RNA molecules and act as enzymes. Example, ribozymes are involved in splicing in gene expression. The active site of enzyme breaks chemical bonds of substrate to form enzyme product (EP) complex. In an exothermic or endothermic reaction the substrate must go through a much higher energy state, it is called transition state energy.

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