Question

Write briefly note on enzyme nomenclature in 3 marks

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Answer 1

Answer:

Answer :-

Enzymes are named in many different ways. The rules for naming enzymes, are as follows :-

Enzymes are usually named by adding the suffix- "ase" to the name of the substrate. (Eg: Urea-Urease, Arginine-Arginase, Tyrosin-Tyrosinage, Uric acid-Uricase and Amylum-Amylase)

With suffix "lytic"- Proteolytic (Protien), Lipolytic (Lipid) and Sucrolytic (Sucrose).

Some enzymes end with "zyme"- Lysozyme (from the Greek word "lysis" which means "to dissolve").

Extra Information :-

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"Lysozyme" is an enzyme which is found in tears and saliva.

Some enzymes have traditional names like "Pepsin" and "Trypsin", which break the internal peptide bonds in protiens.

Some enzymes are named according to the source from which they are obtained- "Papain" from Papaya, "Bromelain" from Pineapple and "Ficin" from Ficus.

An enzyme named "Distase" takes part in the digestion of starch.

An enzyme named "Lipase" takes part in the digestion of fats.

The latest method of nomenclature of enzymes, is the "I.U.B. system", proposed by the "I.U.B." (International Union of Biochemistry and Molecular Biology)

The "I.U.B. system" was proposed in the year 1992.

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Answer 2

A N S W E R :

Enzymes are named in many different ways. The rules for naming enzymes, are as follows –

• Enzymes are usually named by adding the suffix - " ase " to the name of the substrate. Eg., – Urea - Urease, Arginine - Arginase, Tyrosin - Typrosinage, Uric acid - Uricase and Amylum - Amylase.

• With suffix " lytic " - Proteolytic (Protein) Lypolytic (Lipid) and Sucrolytic (Sucrose).

• Some enzymes and with " zyme " - Lysozyme (from the Greek word " lysis " which means " to dissolve ").

E X T R A I N F O R M A T I O N :

• " Lysozyme " is an enzyme which is found in tears and saliva.

• Some enzymes have traditional names like " Pepsin " and " Trypsin ", which break the internal peptide bonds in proteins.

• Some enzymes are named according to the source from which they are obtained – " Papaine " from papaya, " Bromelain " from pineapple and " Ficin " from ficus.

• And enzyme named " Distase " takes part in the digestion of starch.

• And enzyme named " Lipase " takes part in the digestion of fasts.

• The lastest method of nomenclature of enzymes, is the " I.U.B. System ", proposed by the " I.U.B " (International Union of Biochemistry and Molecular Biology)

• The " l.U.B. System " was proposed in the year 1992.