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  4. An enzyme which has multiple molecular forms in the same organism is termed as

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Q. An enzyme which has multiple molecular forms in the same organism is termed as

AMUAMU 1995

Solution:

[a] & [b]: Isoenzyme (isozyme) is one of the several forms in which an enzyme may exist in various tissues, e.g. there are about 5 isozymes of enzyme lactic dehydrogenase. Although the isoenzymes are similar in catalytic qualities, they may be separated from each other by special chemical tests. Holoenzyme is a type of enzyme consisting of a protein portion (apoenzyme) and a non-amino acid part or prosthetic group.