Multiple choice

An enzyme’s inactive precursor is called

  1. zymogen

  2. isozyme

  3. modulator

  4. lysozyme

  5. none of these

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A Correct answer
Explanation

Zymogen is an enzyme’s inactive precursor which must be cleaved for the formation of active enzyme. For example, trypsin and chymotrypsin are synthesised as precursor trypsinogen and chymotrypsinogen.