Ch 19 Bacteria and Viruses

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Across
  1. 1. Particle made up of nucleic acid, protein, and in some cases lipids that can replicate only by infecting living cells
  2. 2. infection Process in which a virus enters a cell, makes a copy of itself, and causes the cell to burst
  3. 4. Disease causing agent
  4. 5. Spherical prokaryote
  5. 6. infection Process by which a virus embeds its DNA into the DNA of the host cell and is replicated along with the host cell’s DNA
  6. 8. Virus that infects bacteria
  7. 13. Rod-shaped prokaryote
Down
  1. 1. A preparation of weakened or killed pathogens
  2. 3. Form of sexual reproduction in which paramecium and some prokaryotes exchange genetic information
  3. 7. Spiral or corkscrew-shaped prokaryote Binary fission: Type of asexual reproduction in which an organism replicates its DNA and divides in half, producing two identical daughter cells
  4. 9. Unicellular organism lacking a nucleus
  5. 10. Compound that blocks the growth and reproduction of bacteria
  6. 11. Outer protein coat of a virus
  7. 12. fixation Process of converting nitrogen gas into ammonia