| Answer | Crossword Clue |
|---|---|
| proinsulin | A substance produced by the pancreas that is converted to insulin |
| prodrug | inactive substance that is converted to a drug within the body by the action of enzymes or other chemicals |
| autotoxins | A substance produced by an organism that is toxic to the organism itself |
| autotoxin | A substance produced by an organism that is toxic to the organism itself |
| phytoalexins | A substance that is produced by plant tissues in response to contact with a parasite and that specifically inhibits the growth of that parasite |
| phytoalexin | A substance that is produced by plant tissues in response to contact with a parasite and that specifically inhibits the growth of that parasite |
