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Chapter 13 – Viruses, Viroids, and Prions

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Chapter 13 Viruses, Viroids, and Prions The Spread and Patterns of Disease Viral Infections Prions/Viroids Epidemiology Viral Characteristics $100 – PowerPoint PPT presentation

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Title: Chapter 13 – Viruses, Viroids, and Prions


1
Chapter 13 Viruses, Viroids, and Prions
The Spread and Patterns of Disease
Viral Characteristics
Viral Infections
Prions/Viroids
Epidemiology
100
100
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200
200
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300
300
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400
400
400
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400
500
500
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500
FINAL ROUND
2
Topic 1 Viral Characteristics100 Question
  • Viruses differ from bacteria in that
  • a. Viruses do not have any nucleic acid
  • b. Viruses do not reproduce
  • c. Viruses are filterable
  • d. Viruses are not composed of cells

ANSWER
BACK TO GAME
3
Topic 1 Viral Characteristics 100 Answer
  • Viruses differ from bacteria in that
  • a. Viruses do not have any nucleic acid
  • b. Viruses are obligate intracellular parasites
  • c. Viruses are filterable
  • d. Viruses are not composed of cells (correct
    answer)

BACK TO GAME
4
Topic 1 Viral Characteristics 200 Question
  • An example of a complex viral structure is?
  • a. A viroid
  • b. A bacteriophage
  • c. The herpes virus
  • d. A togavirus

ANSWER
BACK TO GAME
5
Topic 1 Viral Characteristics 200 Answer
  • An example of a complex viral structure is?
  • a. A viroid
  • b. A bacteriophage(correct answer)
  • c. The herpes virus
  • d. A togavirus

BACK TO GAME
6
Topic 1 Viral Characteristics 300 Question
  • Viruses that infect bacteria are called
  • a. Bacteriophages
  • b. Prions
  • c. Viroids
  • d. Complex viruses

ANSWER
BACK TO GAME
7
Topic 1 Viral Characteristics 300 Answer
  • Viruses that infect bacteria are called
  • a. Bacteriophages (correct answer)
  • b. Prions
  • c. Viroids
  • d. Complex viruses

BACK TO GAME
8
Topic 1 Viral Characteristics 400 Question
  • Viruses range in size from
  • a. 10 to 100 nm in length
  • b. 10 to 1000 nm in length
  • c. 20 to 100 nm in length
  • d. 20 to 1000 nm in length

ANSWER
BACK TO GAME
9
Topic 1 Viral Characteristics 400 Answer
  • Viruses range in size from
  • a. 10 to 100 nm in length
  • b. 10 to 1000 nm in length
  • c. 20 to 100 nm in length
  • d. 20 to 1000 nm in length (correct answer)

BACK TO GAME
10
Topic 1 Viral Characteristics 500 Question
  • Which of the following is NOT used as a criterion
    to classify viruses?
  • a. Biochemical tests
  • b. Size
  • c. Morphology
  • d. Number of capsomeres

ANSWER
BACK TO GAME
11
Topic 1 Viral Characteristics 500 Answer
  • Which of the following is NOT used as a criterion
    to classify viruses?
  • a. Biochemical tests (correct answer)
  • b. Size
  • c. Morphology
  • d. Number of capsomeres

BACK TO GAME
12
Topic 2 Viral Infections100 Question
  • A persistent infection is an infection in which?
  • a. The disease process occurs gradually over a
    long period
  • b. Host cells are gradually lysed
  • c. Viral replication is usually slow
  • d. Host cells are transformed

ANSWER
BACK TO GAME
13
Topic 2 Viral Infections100 Answer
  • A persistent infection is an infection in which?
  • a. The disease process occurs gradually over a
    long period (correct answer)
  • b. Host cells are gradually lysed
  • c. Viral replication is usually slow
  • d. Host cells are transformed

BACK TO GAME
14
Topic 2 Viral Infections 200 Question
  • Viruses CANNOT be cultured
  • a. In laboratory animals
  • b. In cell culture
  • c. In embryonated eggs
  • d. In culture media

ANSWER
BACK TO GAME
15
Topic 2 Viral Infections 200 Answer
  • Viruses CANNOT be cultured
  • a. In laboratory animals
  • b. In cell culture
  • c. In embryonated eggs
  • d. In culture media (correct answer)

BACK TO GAME
16
Topic 2 Viral Infections 300 Question
  • A togavirus is
  • a. A single-stranded RNA enveloped virus
  • b. A single-stranded DNA nonenveloped virus
  • c. A double-stranded DNA nonenveloped virus
  • d. A single-stranded RNA nonenveloped virus

ANSWER
BACK TO GAME
17
Topic 2 Viral Infections 300 Answer
  • A togavirus is
  • a. A single-stranded RNA enveloped virus (correct
    answer)
  • b. A single-stranded DNA nonenveloped virus
  • c. A double-stranded DNA nonenveloped virus
  • d. A single-stranded RNA nonenveloped virus

BACK TO GAME
18
Topic 2 Viral Infections 400 Question
  • An example of a latent viral infection is
  • a. Shingles
  • b. Herpes Simplex I
  • c. Mumps
  • d. Both a b

ANSWER
BACK TO GAME
19
Topic 2 Viral Infections 400 Answer
  • An example of a latent viral infection is
  • a. Shingles
  • b. Herpes Simplex I
  • c. Mumps
  • d. Both a b (correct answer)

BACK TO GAME
20
Topic 2 Viral Infections 500 Question
  • An example of a persistent viral infection in
    humans is
  • a. Cold sores
  • b. Cervical cancer
  • c. Shingles
  • d. Leukemia

ANSWER
BACK TO GAME
21
Topic 2 Viral Infections 500 Answer
  • An example of a persistent viral infection in
    humans is
  • a. Cold sores
  • b. Cervical cancer (correct answer)
  • c. Shingles
  • d. Leukemia

BACK TO GAME
22
Topic 3 Prions/Viroids100 Question
  • An infectious protein is a
  • a. Retrovirus
  • b. Papovavirus
  • c. Viroid
  • d. Prion

ANSWER
BACK TO GAME
23
Topic 3 Prions/Viroids 100 Answer
  • An infectious protein is a
  • a. Retrovirus
  • b. Papovavirus
  • c. Viroid
  • d. Prion (correct answer)

BACK TO GAME
24
Topic 3 Prions/Viroids 200 Question
  • A viroid is
  • a. A provirus
  • b. A naked, infectious piece of RNA
  • c. A capsid without a nucleic acid
  • d. A complete, infectious virus particle

ANSWER
BACK TO GAME
25
Topic 3 Prions/Viroids 200 Answer
  • A viroid is
  • a. A provirus
  • b. A naked, infectious piece of RNA (correct
    answer)
  • c. A capsid without a nucleic acid
  • d. A complete, infectious virus particle

BACK TO GAME
26
Topic 3 Prions/Viroids 300 Question
  • Viroids infect
  • a. Animals
  • b. Insects
  • c. Plants
  • d. Bacteria

ANSWER
BACK TO GAME
27
Topic 3 Prions/Viroids 300 Answer
  • Viroids infect
  • a. Animals
  • b. Insects
  • c. Plants (correct answer)
  • d. Bacteria

BACK TO GAME
28
Topic 3 Prions/Viroids 400 Question
  • Scrapie is an example of an infection caused by
  • a. A prion
  • b. A viroid
  • c. A difficult-to-detect virus
  • d. A difficult-to-grow bacterium

ANSWER
BACK TO GAME
29
Topic 3 Prions/Viroids 400 Answer
  • Scrapie is an example of an infection caused by
  • a. A prion (correct answer)
  • b. A viroid
  • c. A difficult-to-detect virus
  • d. A difficult-to-grow bacterium

BACK TO GAME
30
Topic 3 Prions/Viroids 500 Question
  • One human disease caused by a prion is
  • a. Mad cow disease
  • b. Creutzfeldt-Jakob disease
  • c. Scrapie
  • d. Tularemia

ANSWER
BACK TO GAME
31
Topic 3 Prions/Viroids 500 Answer
  • One human disease caused by a prion is
  • a. Mad cow disease
  • b. Creutzfeldt-Jakob disease (correct answer)
  • c. Scrapie
  • d. Tularemia

BACK TO GAME
32
Topic 4 The Spread and Patterns of Disease 100
Question
  • Kochs postulates dont apply to all diseases
    because
  • a. Some microorganisms cause different
    symptoms under different conditions
  • b. Some microorganisms cannot be observed
  • c. Not all diseases are caused by microorganisms
  • d. Some microorganisms cant be cultured in
    laboratory media.

ANSWER
BACK TO GAME
33
Topic 4 The Spread and Patterns of Disease 100
Answer
  • Kochs postulates dont apply to all diseases
    because
  • a. Some microorganisms cause different
    symptoms under different conditions
  • b. Some microorganisms cannot be observed
  • c. Not all diseases are caused by microorganisms
    (correct answer)
  • d. Some microorganisms cant be cultured in
    laboratory media.

BACK TO GAME
34
Topic 4 The Spread and Patterns of Disease 200
Question
  • A clearing visible against a lawn of bacterial
    growth on the surface of agar is called a
  • a. Phage
  • b. Cell lysis
  • c. Pock
  • d. Plaque

ANSWER
BACK TO GAME
35
Topic 4 The Spread and Patterns of Disease 200
Answer
  • A clearing visible against a lawn of bacterial
    growth on the surface of agar is called a
  • a. Phage
  • b. Cell lysis
  • c. Pock
  • d. Plaque (correct answer)

BACK TO GAME
36
Topic 4 The Spread and Patterns of Disease 300
Question
  • A commensal bacterium
  • a. Does not infect its host
  • b. Is beneficial to its host
  • c. May be an opportunistic pathogen
  • d. Does not receive any benefit from its host

ANSWER
BACK TO GAME
37
Topic 4 The Spread and Patterns of Disease 300
Answer
  • A commensal bacterium
  • a. Does not infect its host
  • b. Is beneficial to its host
  • c. May be an opportunistic pathogen (correct
    answer)
  • d. Does not receive any benefit from its host

BACK TO GAME
38
Topic 4 The Spread and Patterns of Disease 400
Question
  • Which of the following is a fomite?
  • a. Sneeze droplets
  • b. A hypodermic needle
  • c. Insects
  • d. Water

ANSWER
BACK TO GAME
39
Topic 4 The Spread and Patterns of Disease r
400 Answer
  • Which of the following is a fomite?
  • a. Sneeze droplets
  • b. A hypodermic needle (correct answer)
  • c. Insects
  • d. Water

BACK TO GAME
40
Topic 4 The Spread and Patterns of Disease 500
Question
  • What is the most common type of nosocomial
    infection?
  • a. Lower respiratory infections
  • b. Postoperative infections
  • c. Bacteremia
  • d. Urinary tract infections

ANSWER
BACK TO GAME
41
Topic 4 The Spread and Patterns of Disease 500
Answer
  • What is the most common type of nosocomial
    infection?
  • a. Lower respiratory infections
  • b. Postoperative infections
  • c. Bacteremia
  • d. Urinary tract infections (correct answer)

BACK TO GAME
42
Topic 5 Epidemiology 100 Question
  • One effect of washing regularly with
    antibacterial agents is the removal of normal
    microbiota. This can result in
  • a. Fewer diseases
  • b. Body odor
  • c. Normal microbiota returning immediately
  • d. Increased susceptibility to disease

ANSWER
BACK TO GAME
43
Topic 5 Epidemiology 100 Answer
  • One effect of washing regularly with
    antibacterial agents is the removal of normal
    microbiota. This can result in
  • a. Fewer diseases
  • b. Body odor
  • c. Normal microbiota returning immediately
  • d. Increased susceptibility to disease (correct
    answer)

BACK TO GAME
44
Topic 5 Epidemiology 200 Question
  • The science that deals with when diseases occur
    how they are transmitted is called
  • a. Public health
  • b. Ecology
  • c. Epidemiology
  • d. Morbidity

ANSWER
BACK TO GAME
45
Topic 5 Epidemiology 200 Answer
  • The science that deals with when diseases occur
    how they are transmitted is called
  • a. Public health
  • b. Ecology
  • c. Epidemiology (correct answer)
  • d. Morbidity

BACK TO GAME
46
Topic 5 Epidemiology 300 Question
  • Emergence of infectious diseases can be due to
    all of the following EXCEPT
  • a. climatic changes
  • b. Travel
  • c. Microbes trying to cause disease because they
    are evil
  • d. Digging up soil

ANSWER
BACK TO GAME
47
Topic 5 Epidemiology 300 Answer
  • Emergence of infectious diseases can be due to
    all of the following EXCEPT
  • a. climatic changes
  • b. Travel
  • c. Microbes trying to cause disease because they
    are evil (correct answer)
  • d. Digging up soil

BACK TO GAME
48
Topic 5 Epidemiology 400 Question
  • Which of the following can contribute to
    postoperative infections?
  • a. normal microbiota on the operating
    room staff
  • b. Antibiotic resistance
  • c. Errors in aseptic technique
  • d. All of the above

ANSWER
BACK TO GAME
49
Topic 5 Epidemiology 400 Answer
  • Which of the following can contribute to
    postoperative infections?
  • a. normal microbiota on the operating
    room staff
  • b. Antibiotic resistance
  • c. Errors in aseptic technique
  • d. All of the above (correct answer)

BACK TO GAME
50
Topic 5 Epidemiology 500 Question
  • An epidemic caused by Yersinia pestis would be an
    example of
  • a. Vector transmission
  • b. Droplet transmission
  • c. Fomite transmission
  • d. Direct contact transmission

ANSWER
BACK TO GAME
51
Topic 5 Epidemiology 500 Answer
  • An epidemic caused by Yersinia pestis would be an
    example of
  • a. Vector transmission (correct answer)
  • b. Droplet transmission
  • c. Fomite transmission
  • d. Direct contact transmission

BACK TO GAME
52
FINAL ROUND Question
  • Which of the following is an avian influenza?
  • a. H3N2
  • b. H1N2
  • c. H5N1
  • d. H1N1

ANSWER
BACK TO GAME
53
FINAL ROUND Answer
  • Which of the following is an avian influenza?
  • a. H3N2
  • b. H1N2
  • c. H5N1(correct answer)
  • d. H1N1

BACK TO GAME
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