Cell Theory Crossword

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Across
  1. 1. All cells carry the entire set of this
  2. 4. The smallest unit of life
  3. 5. The last name of the scientist who carried out the chicken broth experiment
  4. 7. Process where some genes are expressed whilst some remain inactive
  5. 9. One of the machines used to back cell theory
Down
  1. 2. Word to describe- 'when a gene is being used in a cell'
  2. 3. Cells do this when the ratio between volume: surface area gets too big
  3. 5. All cells come from _ cells
  4. 6. All _ things are composed of cells
  5. 8. As a cell grows, _ increases greater than surface area