| 100% | CYTOPLASM | 9 | Background substance inside the membrane of a cell |
| 43% | CYTOPLASM | 9 | Contents of a cell excepting the nucleus |
| 43% | SALT | 4 | Substance on the rim of a margarita glass |
| 43% | NUCLEUS | 7 | The core of a biological cell |
| 42% | TEXTURE | 7 | The feel of a surface or substance |
| 42% | FLUIDITY | 8 | The ability of a substance to flow easily |
| 41% | VACUOLE | 7 | Space within the cytoplasm of a cell |
| 40% | ODORS | 5 | The properties of a substance that activate the sense of smell |
| 40% | TITRATES | 8 | Determines the concentration of a dissolved substance |
| 39% | FLAP | 4 | Part of a book cover that's inside the book |
| 39% | HISTOLOGY | 9 | The study of cells and tissues with a microscope |
| 38% | ACIDITY | 7 | The level of sourness, e.g. of a food or substance |
| 38% | OOBLECK | 7 | Gooey green substance in the title of a 38-Across story |
| 37% | NUCLEUS | 7 | The home of most of a cell's DNA |
| 37% | CONCAVE | 7 | Like the inside of a sphere |
| 37% | UNLIT | 5 | Like the inside of a coffin |
| 37% | SOOTY | 5 | Like the inside of a chimney |
| 37% | CONCAVE | 7 | Like the inside of a spoon |
| 37% | ASHY | 4 | Like the inside of a fireplace |
| 37% | RED | 3 | Like the inside of a watermelon |
| 36% | CEILING | 7 | The upper inside surface of a room |
| 36% | MOLTEN | 6 | Like the inside of a lava cake |
| 36% | GOOEY | 5 | Like the inside of a toasted marshmallow |
| 36% | AIROUT | 6 | Open a window to get rid of the odors inside: 2 wds. |
| 35% | PLASM | 5 | Suffix for Cyto (Substance of a cell) |
| 35% | BEEPER | 6 | Ancestor of a cell |
| 35% | VACUOLE | 7 | Membrane-bound, liquid-filled part of a cell |
| 35% | ASH | 3 | Powdery substance flicked off the end of a cigar |
| 35% | GOOEY | 5 | Like the inside of a warm chocolate chip cookie |
| 35% | SIZE | 4 | Number on the inside of a shoe |