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Q.
Enzymes having slightly different molecular structure but performing identical activity are
Biomolecules
Solution:
Enzymes having slightly different molecular structures but performing identical activities are called isoenzymes. Holoenzyme is a complex comprising an enzyme molecule and its cofactor. Apoenzyme is an inactive enzyme that must associate with a specific cofactor molecule or ion in order to function. Coenzyme is an organic nonprotein molecule that associates with an enzyme molecule in catalysing biochemical reactions.