Chapter 21 Vocabulary

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Across
  1. 3. process in which a cell replicates its DNA and then divides in half to produce 2 identical cells; binary ________.
  2. 5. RNA virus that contains RNA as its genetic material
  3. 7. group of drugs used to block the growth and reproduction of bacterial pathogens
  4. 9. disease-causing agent
  5. 13. particle made of proteins, nucleic acids, and lipids that can replicate only by infecting living cells
  6. 14. a virus that infects bacteria
  7. 15. symbiotic association between a fungus and a photosynthetic organism
  8. 16. short, hair-like projection that produces movement (plural form is "cilia")
  9. 18. process in which prokaryotes and paramecia exchange genetic information sexually
  10. 19. type of viral infection in which a virus embeds its DNA into the DNA of the host cell and is replicated along with the host cell's DNA
  11. 21. structure produced by prokaryotes in unfavorable conditions; thick internal wall that encloses the DNA and a portion of the cytoplasm
Down
  1. 1. unicellular organism that lacks a nucleus
  2. 2. densely branched network of hyphae of a fungus
  3. 3. _______ body; reproductive structure of a fungus that grows from the mycelium
  4. 4. complex carbohydrate that makes up the cell walls of fungi
  5. 6. bacteriophage DNA that is embedded in the bacterial host's DNA
  6. 8. life cycle that has 2 alternating phases: a haploid phase and a diploid phase; ____________ of generations
  7. 10. structure used by protists for movement; produces movement in a wavelike motion (plural form is "flagella")
  8. 11. symbiotic association of plant roots and fungi
  9. 12. one of many long, slender filaments that make up the body of a fungus
  10. 17. preparation of weakened or killed pathogens used to produce immunity to a disease
  11. 19. type of viral infection in which the virus enters a cell, copies itself, and causes the cell to burst
  12. 20. protein coat surrounding a virus