Biology - Chapter 18

The flashcards below were created by user Anonymous on FreezingBlue Flashcards.

  1. Virus
    composed of nucleic acids enclosed in a protein coat and are smaller than the smallest bacterium
  2. Host Cell
    A cell in which a virus replicates
  3. Bacteriophage
    A virus that infects a bacterium
  4. Capsid
    Outer protein coat
  5. Lytic Cycle
    The new viruses can then infect and kill other host cells
  6. Lysogenic Cycle
    A replication cycle in which the virus's nucleic acid is integrated into the host cell's chromosome.
  7. Provirus
    Viral DNA that is integrated into the host cell's chromosome
  8. Retrovirus
    The RNA virus with the most complex replication cycle
  9. Reverse Transcriptase
    An enzyme it carries inside its capsid
  10. Prion
    Composed of proteins but have nucleic acid to carry genetic information.
  11. Viroids
    Composed of a single circular strand of RNA with no protein coat
  12. Chemosynthesis
    They break down and release the energy of inorganic compounds containing sulfur and nitrogen
  13. Binary Fission
    process where bacteria reproduce asexually
  14. Conjugation
    one bacterium transfers all or part of its chromosome to another cell through or on a bridgelike structure called a pilus that connects the two cells
  15. Obligate Anaerobe
    Bacteria that require oxygen for respiration
  16. Obligate Anaerobes
    Bacteria that is killed by oxygen
  17. Endospore
    A tiny structure that contains a bacterium's DNA and a small amount of its cytoplasm, encased by a tough out covering that resists drying out, temperature extremes, and harsh chemicals.
  18. Toxin
    Powerful and deadly poison
  19. Nitrogen Fixation
    Metabolic process in which bacteria use enzymes to convert atmospheric nitrogen (N2) into ammonia (NH3)
Card Set:
Biology - Chapter 18
2014-02-19 03:20:46
Vocabulary, Biology, Chapter 18
Show Answers: