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Virus

Virus. A tiny, nonliving particle that invades and then reproduces inside a living cell. Host Cell. An organism that provides a source of energy for a virus or another organism. Bacteriophage. viruses that infect bacteria. Capsid. a protein coat that may contain RNA or DNA but not both.

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Virus

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  1. Virus • A tiny, nonliving particle that invades and then reproduces inside a living cell

  2. Host Cell • An organism that provides a source of energy for a virus or another organism

  3. Bacteriophage • viruses that infect bacteria

  4. Capsid • a protein coat that may contain RNA or DNA but not both

  5. Lytic Cycle • Cycle of infection, replication and cell destruction

  6. Lysogenic Cycle • cell divides, the provirus also divides, resulting in two infected host cells.

  7. Provirus • viral gene that is inserted into the host chromosome

  8. Retrovirus • RNA virus that contains reverse transcriptase

  9. Reverse Transcriptase • uses RNA as a template to make DNA • is an enzyme used to generate complementary DNA (cDNA) from an RNA template

  10. Prion • an infectious agent that is composed primarily of protein.

  11. Viroid • Viroids are plant pathogens that consist of a short stretch of highly complementary, circular, single-stranded RNA.

  12. Chemiosynthesis • the biological conversion of one or more carbon molecules (usually carbon dioxide or methane)

  13. Binary Fission • Where one bacterium divides to form two identical bacteria cells

  14. Conjugation • The process in which two bacteria exchange genetic material

  15. Obligate Aerobe • is an aerobic organism that requires oxygen to grow

  16. Obligate Anaerobe • are microorganisms that live and grow in the absence of molecular oxygen; some of these are killed by oxygen

  17. Endospore • Small, rounded, thick-walled, resting cell that forms inside a bacterial cell

  18. Toxin • Poison produced by bacteria

  19. Nitrogen Fixation • is a process by which nitrogen (N2) in the atmosphere is converted into ammonia (NH3)

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