| Answer | Crossword Clue |
|---|---|
| zymogens | An inactive substance that is converted into an enzyme when activated by another enzyme |
| proenzyme | an enzyme in an inactive form which can be activated, often by another enzyme |
| proenzymes | PROENZYME, an enzyme in an inactive form which can be activated, often by another enzyme |
| pepsinogen | A substance that is secreted by the stomach wall and converted into the enzyme pepsin by gastric acid |
| pepsinogens | A substance that is secreted by the stomach wall and converted into the enzyme pepsin by gastric acid |
