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Biomolecules — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYBiomolecules1 Mark
MCQ
Lactic dehydrogenase $\text{(LDH)}$ which catalyzes pyruvate to lactate is an example of:
  • A
    Apoenzyme
  • B
    Antienzyme
  • ✓
    Isoenzyme
  • D
    Coenzyme
✓

Answer

Correct option: C.
Isoenzyme
Some enzymes have several molecular forms, example: $16$ for $\alpha -$amylase and $5$ for lactate dehydrogenase $\text{(LDH).}$
They are called as isoenzymes or isozymes.
They differ in substrate affinity, maximum activity and regulatory properties.

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