| Answer | Crossword Clue |
|---|---|
| arginase | liver enzyme that converts arginine to urea |
| arginases | liver enzyme that converts arginine to urea |
| urase | an enzyme that converts urea to a salt, also UREASE |
| urease | an enzyme that converts urea to a salt, also URASE |
| ureases | UREASE, an enzyme that converts urea to a salt, also URASE |
| urases | URASE, an enzyme that converts urea to a salt, also UREASE |
