What are the properties of enzymes ?

Properties of enzymes -

                                                                                                                                                                                          

                                                                             Image source https://quizlet.com/21392287/biochemistry-chapter-11-flash-cards/                                                                                                                                                                 

• Enzymes are bio-catalysts-Catalyst binds with reactants (called the substrate)accelerates the reactionand then repeatedly separates from the reaction products. 

• Apoenzyme - The protein part of enzyme is called apoenzyme.

                               Apoenzyme+cofacter =Holoenzyme

• Coenzyme- Coenzymes are non protein organic molecules used by enzymes to catalyse reactions. Many coenzymes cannot be synthesized in our body, they must be ingested as vitamins. NAD ,FAD and vitamin complexes are the examples of coenzyme.

•  Cofacters-  Catalytically essential inorganic molecules or ions that are covalently bound to the enzyme,such as iron or magnesium. Participate in reaction by removing electrons ,protons and chemical groups from the substrate.

• An enzyme  contain components that are not proteins, and these are grouped under prosthetic groups. Which includes (heme) present in hemoglobin and cytochrome.

• All enzymes are proteins but all proteins are not enzymes.

• Enzymes accelerate a reaction by decreasing energy required to form the transition state. 

1. Enzymes donot interfere with -

a. Free energy of reaction

b.Rate of reaction

c.Avtivation energy of transition state 

d. Reaction equilibrium 

Ans.   d  

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