chapter 21 biology terms

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Across
  1. 3. short hair-like projection that produces movement
  2. 4. is a protein coat surrounding a virus
  3. 6. structure produced by prokaryotes in unfavorable conditions; thick internal walls that enclose DNA and a portion of disease-causing material
  4. 11. symbiotic association of plant roots and fungi
  5. 13. symbiotic association between a fungus and photosynthetic organisms
  6. 17. reproductive structure of a fungus that grows from the mycelium
  7. 18. disease-causing agent
  8. 19. is the process by which paramecia and some prokaryotes exchange genetic information
  9. 20. Particle is made of a protein, nucleic acids, and sometimes lipids that can replicate only by infecting living cells
  10. 21. bacteriophage DNA that is embedded in the bacterial host's DNA
  11. 22. preparation of weakened or killed pathogens is used to produce immunity to a disease
  12. 23. infection in which a virus embeds its DNA into the DNA of the host's cell and is replicated within the host's DNA
Down
  1. 1. process in which a cell replicates its DNA and then divides in half to produce two identical cells
  2. 2. kind of virus that infects bacteria
  3. 5. life cycle that has 2 alternations peare a haploid layer and a diploid phase
  4. 7. Type of infection in which the virus enters a cell, makes a new copy of itself, and causes the cell to burst
  5. 8. groups of drugs are used to block the growth and reproduction of bacterial pathogens
  6. 9. densely branched network of hyphae
  7. 10. structure used by preists for Mohomed moves an unaviable metin
  8. 12. DNA virus that contains RNA as its genetic information
  9. 14. complex carbohydrates that make up the cell walls of fungi also found in the external skeletons of some insects
  10. 15. is a unicellular organism that lacks a nucleus
  11. 16. are one of many long slender filaments that make up the body of a fungus