Question

Write down the salient features of enzyme catalyst

Answer 1

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Enzymes are biological catalysts. ... Enzymes speed up reactions by bringing reactants together and reducing the activation energy required to start the reaction (enzymatic reaction). Enzymes are specific: they have a specific shape, therefore only a certain substrate will fit its active site.

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Answer 2

Answer :-

The characteristic features of enzymes (catalysts) are as follows :-

• Enzymes are the largest and most specialised class of protein molecules.

• All Enzymes are "Globular Proteins".

• Simple enzymes on hydrolysis, yield amino acids only ( Eg - Pepsin, Trypsin, Chromotrypsin).

• "Holoenzymes" are conjugated proteins which can be dissociated into Protien components, Apoenzymes, and Non-Protien parts called Co-factors.

• Co-factors may vary from simple organic ions to Complex organic molecules.

• "Coenzymes" are organic molecules which are loosely attached to each other.

• "Coenzymes" are easily separable molecules.

• "Coenzymes" tend to form combinations with "Apoenzymes" only at the time of reaction.

• "Coenzymes" are organic, non-protinaceous groups which are essential for the proper maintenance of the activities of the enzymes.

• Enzymes exist in the cells of organisms in the form of "Colloidal particles".