Chapter 3

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Across
  1. 2. main component of bacterial cell walls
  2. 4. structures that protect against harsh conditions
  3. 7. movement away from a chemical stimulus
  4. 8. pairs of single bacterial cells
  5. 10. general term for spiral-shaped bacteria
  6. 13. chains of bacterial cells
  7. 14. rod-shaped bacterium
  8. 15. extrachromosomal DNA
Down
  1. 1. outer protective layer outside the plasma membrane
  2. 3. movement toward a chemical stimulus
  3. 5. movement in response to chemical signals
  4. 6. grape-like clusters of cells
  5. 9. sites of protein synthesis
  6. 11. groups of four bacterial cells
  7. 12. round-shaped bacterium