Microbiology

Card Set Information

Author:
Anonymous
ID:
284143
Filename:
Microbiology
Updated:
2014-09-26 11:27:39
Tags:
Viruses Prions
Folders:

Description:
Viruses and Prions
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user Anonymous on FreezingBlue Flashcards. What would you like to do?


  1. In a lysogenic state, the integrated bacteriophage DNA is referred to as a _____.
  2. After a bacteriophage injects its DNA into a bacterial cell, the empty capsid that remains outside is called a "____ ____."
    Ghost Phage
  3. In 1935, Wendell Stanley _____ viruses and then showed they were still infectious, proving they were not cellular organisms.
    Crystallized
  4. HIV contains a prepackaged enzyme called ____ that inserts the viral genes into the host cell chromosome.
  5. ____ ____ I refers to oral infections such as cold sores and fever blisters.
    Herpes Simplex
  6. Originally taken from cervical cancer patient Henrietta Lacks in 1951, HeLa cells represent a ____ (immortal) cell line used to culture viruses in vitro.
  7. Retroviruses (including HIV) are RNA viruses that contain a enzyme called reverse transcriptase (or __-___ DNA polymerase) to make DNA copies from RNA templates.
  8. During replication of a DNA animal virus, DNA replication occurs in the ___ of the host cell.
  9. ____bodies are intracellular areas of virus assembly who's location and appearance are constant and therefore used to identify cells infected with certain viruses, such as rabies and measles.
  10. The ____ virus (which causes "flu") is an enveloped single-stranded RNA virus.
  11. A prion disease such as mad cow may also be called TSE, which stands for transmissible spongiform ____.
    Encephalopathies
  12. A ___ cell line consists of embryonic cells that will grow for 100 or more generations in vitro.
  13. During replication of a DNA animal virus, translation occurs in the ____ phase of the 1-step viral growth curve.
  14. Hepatitis A, also knob as ____ hepatitis, is spread via the fecal-oral route.
  15. Once bacteriophage assembly is completed, the enzyme ____ (coded for by a phage gene) causes lysis of the bacterial cell and release of new viruses.
    Lysozyme
  16. HIV contains a prepackaged enzyme called ____ that helps in the assembly of new viruses by cleaving the translation proteins.
  17. Some bacteriophages do not kill their host cells immediately, but instead enter a ____ cycle as a prophage; they are replicated along with the host cell DNA and may remain in place for many generations because of a repressor protein.
    Lysogenic
  18. An example of a latent viral infection in humans is the permanent Hepes infection known as Varicellazoster; Varicella refers to the primary infection of chickenpox and zoster refers to subsequent outbreaks called ____.
    Shingles
  19. ___ was a degenerative, fatal neurological prion disease of the Fore tribe of Papua, New Guinea which was perpetuated by cannibalistic rituals.
  20. ____ virus is still limited to certain parts of Africa; it causes profuse hemorrhaging at capillary beds throughout the body.
    Ebola
  21. Prions cause fatal diseases that affect the CNS; brain function degenerates as neurons die, and brain tissue develops sponge-like holes; referred to as transmissible _____ encephalopathies.
    Spongiform
  22. An example of a ____ viral infection in humans is the permanent Herpes infection knownas Varicellazoster; Varicella refers to the primary infection of chickenpox and zoster refers to subsequent outbreaks called shingles.
    Latent
  23. Enveloped viruses obtain their envelope by __ out of their host cell.
  24. The protein coat of a virus is called a _____.
  25. Latent animal virus infections are similar to lysogeny in bacteria; here, the viral DNA that is integrated into the host cell DNA is called a ___ instead of a prophage.
  26. An example of a latent viral infection in humans is the permanent Herpes infection knownas Varicellazoster; Varicella refers to the primary infection of _____ and zoster refers to subsequent outbreaks called shingles.
    Chickenpox
  27. Many different viruses cause the common cold , but ___ cause the really severe colds.
  28. BSE (_____ spongiform encephalopathy) is commonly known as mad cow disease.
  29. Viral replication begins with ____ (attachment) due to chemical recognition of host cell receptors.
    Adsoption
  30. In 1935, Wendell _____ crystallized viruses and then showed they were still infectious, proving they were not cellular organisms.
    Stanley
  31. An icosahedron is a ____ with 20 equilateral triangle faces.
    Polygon
  32. Herpes simplex __ is also known as oral herpes; cold sores and fever blisters.
    I
  33. ___ ____ refers to the number of new viruses released by lysis of the host cell.
  34. Human ____ virus causes "slapped cheek syndrome."
  35. ____ B is also known as "serum" hepatitis; it is spread in the same ways HIV is spread, but it is even more contagion than HIV.
    Hepatitis
  36. Although cells are measured in micrometers, virus size is measured in units called ___; the average range is 20-300 and this equals .02-.3μm.
    Nanometers
  37. Herpes simplex I is also known as ___ herpes; cold sores and fever blisters.
    Oral
  38. During viral replication, ____ ____ occurs when the capsid proteins and nucleic acids join together.
  39. Soon after viruses were discovered, Martinus ___ named them the Latinized name "contagium vividiim fluidium;" this rather cumbersome name wasn't popular, and was eventually replaced by "virus."
    Beijerinck
  40. The mumps virus is a single-stranded RNA virus that causes the ___ salivary glands to swell, making swallowing very painful.
    Parotid
  41. RNA viruses code for an enzyme named ___-____ RNA polymerase in order to make RNA copies of their RNA genome.
  42. The "I" in HIV stands for the word _____.
    Immunodeficiency
  43. ____ simplex II is also known as genital herpes.
    Herpes
  44. A ___ is a empty spot in a lawn of bacteria on an agar plate; it began when a bacteriophage infected a cell, eventually leading to death of a cells in the immediate area.
  45. Double-stranded DNA viruses called ___ viruses cause warts.
    Pappiloma
  46. The first virus ever "discovered" was the ___ ___ virus, by Dmitri Iwanowski in 1892.
    Tabacco Mosaic
  47. Hepatitis A, also known as "infectious" hepatitis is spread via the ___-___ route.
    Fecal-Oral
  48. Soon after viruses were discovered, Martinus Beijerinck named them the Latinized name "contagium _____ fluidium;" this rather cumbersome name wasn't popular, and was eventually replaced by "virus."
    Vividiim
  49. In 1892, Dmitri ____ discovered the firs virus, the Tobacco Mosaic Virus.
    Iwanowski
  50. The ____ virus is a single-stranded RNA virus that causes the parotid salivary glands to swell, making swallowing very painful.
    Mumps
  51. Herpes simplex II is also known as ____herpes.
    Genital
  52. Prophage genes remain integrated into the bacterial chromosome as long as ___ protein is present; spontaneous induction occurs when UV radiation or chemicals damage the protein so it is no longer present; the prophage genes separate and enter lytic cycle.
  53. ____ (or mild) bacteriophages such as the Lambda (λ) phage do not kill their host cells immediately, but instead enter a lysogenic cycle as a prophage; they are replicated along with the host cell DNA and may remain in place for many generations.
  54. A viral capsid is composed of protein subunits called ____.
  55. RNA viruses code for an enzyme named RNA dependent ___ ___ in order to make RNA copies of their RNA genome.
  56. ___ ___ disease is a fatal neurological disease caused by a prion; it occurs in cows and humans.

What would you like to do?

Home > Flashcards > Print Preview