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NTA Abhyas NEET2020ChemistryBiomoleculesPractice

Which statement regarding coenzyme is incorrect?

Options

  1. AEvery cofactor is a coenzyme and every coenzyme is a cofactor
  2. BEvery coenzyme is a cofactor but every cofactor is not a coenzyme
  3. CMost of the coenzymes are nucleotides and are composed of vitamins
  4. DCoenzymes are the active constituents of enzymes

Correct answer

B. Every coenzyme is a cofactor but every cofactor is not a coenzyme

Step-by-step solution

Every coenzyme is a cofactor but every cofactor is not coenzyme. Cofactors can be classified depending on how tightly they bind to an enzyme, with loosely bound cofactors termed coenzymes and tightly bound cofactors termed prosthetic groups.

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