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BIO NMDCAT ENZYMES
nmdcat.online July 11, 2026

The catalytic activity of an enzyme requires Zn²⁺ ions. If removed by dialysis, the protein is inactive. This protein is referred to as

A. A zymogen
B. A holoenzyme
C. An apoenzyme
✓
D. A coenzyme

📝 Explanation

The complete, active enzyme (holoenzyme) consists of the protein part (apoenzyme) and a cofactor. Removing the cofactor leaves the inactive apoenzyme.

📖 Additional Information

  • A zymogen
  • A holoenzyme
  • An apoenzyme
  • A coenzyme

The complete, active enzyme (holoenzyme) consists of the protein part (apoenzyme) and a cofactor. Removing the cofactor leaves the inactive apoenzyme.

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