| ZYMASE | Enzyme occurring naturally in yeasts |
| RENNIN | Milk- curdling enzyme occurring in the gastric juice of young ruminant mammals and widely used in the production of cheese; also called chymosin (6) |
| ACID | White crystalline compound occurring naturally in many plants, used in the manufacture of aspirin, fungicides etc. (9,4) |
| SORBITOL | Crystalline carbohydrate occurring naturally in various stone fruits and berries, used in food as the sweetener E420 (8) |
| ORE | Mineral occurring naturally in half of US state |
| SUGAR | Carbohydrate occurring naturally in honey and milk (5) |
| LANOLIN | Fatty substance occurring naturally in sheep's wool |
| GROUNDWATER | Moisture occurring naturally in the subsoil (11) |
| ARSENIC | Poisonous element occurring naturally in the Earth's crust, atomic no. 33 (7) |
| GOLD | A yellow, malleable, ductile, high density metallic element resistant to chemical reaction occurring naturally in quartz veins |
| ROSEQUARTZ | Said to activate the heart chakra and symbolise love and harmony, a pinkish-coloured crystal occurring naturally in the core of pegmatites (4,6) |
| FIBRE | Another name for dietary roughage occurring naturally in vegetables, wholegrain cereals, seeds and fruit (5) |
| LDOPA | Amino acid occurring naturally in the body used to treat Parkinson's disease |
| FRUCTOSE | Name an intensely sweet carbohydrate occurring naturally in honey (8) |
| NATIVE | Of a metal or other mineral, occurring naturally in a pure or uncombined state (6) |
| ECOLI | Genus of rod-shaped bacteria occurring naturally in the intestines of vertebrates (4,4) |
| SALICYLIC | And 30 Down White crystalline compound occurring naturally in many plants, used in the manufacture of aspirin, fungicides etc. (9,4) |
| LACTASE | Enzyme in some yeasts |
| VIVO | In ___ (occurring naturally) |
| BIOTIN | Growth vitamin found in yeast |
