Brianna Murphy
Test por , creado hace más de 1 año

A quiz related to the Infectious Diseases section of the NATS1670 course at York.

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Brianna Murphy
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Infectious Diseases

Pregunta 1 de 25

1

Viruses affect only humans.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 2 de 25

1

Viruses are the most common cause of acute infections in humans.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 3 de 25

1

In 1892, Dimitri Iwanowski did a study with diseased tobacco plants that was very important for virology. This study showed that:

Selecciona una de las siguientes respuestas posibles:

  • Diseases could be transmitted from one plant to another by an infectious agent smaller than bacteria.

  • Plants can also be hosts to viruses.

  • Viruses within a plant host can survive deeply sub-zero temperatures.

  • Viruses are living, much like their plant hosts.

Explicación

Pregunta 4 de 25

1

Viruses are cellular organisms.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 5 de 25

1

Viruses could be considered "Darwinian Machines" because:

Selecciona una de las siguientes respuestas posibles:

  • They were discovered by Charles Darwin.

  • They operate only on 'survival of the fittest' principles.

  • Darwin invented viruses.

  • They focus mostly on their kill potential.

Explicación

Pregunta 6 de 25

1

There is evidence suggesting that polio has been around as far back as:

Selecciona una de las siguientes respuestas posibles:

  • 2000.

  • 1790.

  • 0820.

  • 3700 BC.

Explicación

Pregunta 7 de 25

1

Viruses are naturally set to evolve best when they maximize:

Selecciona una de las siguientes respuestas posibles:

  • Spreading potential.

  • Lethality.

  • Severe symptoms.

Explicación

Pregunta 8 de 25

1

Severe viral diseases are a failure of the virus to adapt to its host.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 9 de 25

1

Selecciona la opción correcta de los menús desplegables para completar el texto.

A virus has two phases. In the first stage, ( the virus is on its own, as a virion, the virus is in its original host cell, the virus eats a hole in your skin ). In the second phase, ( the virus has entered an infected cell, the virus is mutated, the virus kills the host ).

Explicación

Pregunta 10 de 25

1

All cellular life has the following characteristics in common (Check ALL that apply):

Selecciona una o más de las siguientes respuestas posibles:

  • DNA and RNA (genetic material).

  • Makes proteins.

  • Converts chemicals to energy.

  • Reproduction by division.

  • A cell membrane for regulation.

  • A host for compounds.

  • No more than 50 nano meters in size.

  • Has a virion.

Explicación

Pregunta 11 de 25

1

There are two main types of replication cycles for viruses. , the viral genome enters the host cell. , the viral genome is replicated, viral proteins are created, and the viruses assemble inside the cell then exit. , the genome is integrated into the host DNA and transmitted to the host's daughter cells.

Arrastra y suelta para completar el texto.

    In both cycles
    In neither cycle
    In the Lytic Growth Cycle cycle
    In the Circle Cycle
    In the Lysogenic cycle
    In the Cell Cycle

Explicación

Pregunta 12 de 25

1

When washing your hands, you are more likely to destroy:

Selecciona una de las siguientes respuestas posibles:

  • An enveloped virus.

  • A non-enveloped virus.

  • Your knuckles.

  • Proteins.

Explicación

Pregunta 13 de 25

1

Zoonotic viruses are primarily hosted by:

Selecciona una de las siguientes respuestas posibles:

  • Animals.

  • Humans.

  • Fresh fruit.

  • Zebras.

Explicación

Pregunta 14 de 25

1

Which of the following is NOT a factor affecting host range?

Selecciona una de las siguientes respuestas posibles:

  • Cell surface receptors and viral attachments and proteins.

  • Availability of replication machinery.

  • Availability to leave the cell and spread.

  • Host anti-viral responses.

  • Lethality.

Explicación

Pregunta 15 de 25

1

Rabies can be an extremely slow virus, taking up to over a year to kill its host. This is because the virus:

Selecciona una de las siguientes respuestas posibles:

  • Is sluggish.

  • Targets neurons, which have long axons slowing the process.

  • Travels through the blood stream, but slowly.

  • Isn't very dangerous, and takes multiple bites to really be dangerous.

Explicación

Pregunta 16 de 25

1

Bats and raccoons should not be handled with direct contact because:

Selecciona una de las siguientes respuestas posibles:

  • They might host rabies.

  • They're furry.

  • They can cause pertussis.

  • They're endangered.

Explicación

Pregunta 17 de 25

1

Which of the following is NOT something we need to know to control a viral disease?

Selecciona una de las siguientes respuestas posibles:

  • Reservoirs.

  • Modes of transmission.

  • Methods of inactivation.

  • Likelihood of back-mutation.

Explicación

Pregunta 18 de 25

1

Herpes viruses can be considered like the diamonds in the movie "Diamonds are Forever" because:

Selecciona una de las siguientes respuestas posibles:

  • Herpes viruses remain in your system - they will be with you forever.

  • James Bond has contributed heavily to the study of herpes viruses.

  • Like the diamonds in the movie, herpes are traded rapidly from person to person.

  • Herpes are extremely valuable.

Explicación

Pregunta 19 de 25

1

Cytomegalovirus is a common form of herpes that commonly has no side effects. In this group of people, however, cytomegalovirus can cause blindness.

Selecciona una de las siguientes respuestas posibles:

  • Children.

  • AIDS patients.

  • Elderly.

  • People with rabies.

Explicación

Pregunta 20 de 25

1

Which of the following are true of Epstein Barr Virus, or infectious mononucleosis? (Check ALL that apply)

Selecciona una o más de las siguientes respuestas posibles:

  • ~90% of people have been infected by this.

  • It is also called 'The Kissing Disease'.

  • ~1% of the population has this virus.

  • It is almost always lethal.

  • It's an airborne virus.

Explicación

Pregunta 21 de 25

1

Some herpes viruses have oncogenic (tumor-causing) properties.

Selecciona uno de los siguientes:

  • VERDADERO
  • FALSO

Explicación

Pregunta 22 de 25

1

Which of the following is NOT a potentially oncogenic virus?

Selecciona una de las siguientes respuestas posibles:

  • Human Papiloma Virus.

  • Epstein-Barr Virus.

  • Herpes virus type 8.

  • Hepatitis B and C.

  • Hepatitis A.

Explicación

Pregunta 23 de 25

1

Match the forms of cancer to the areas of the body they primarily affect.

Burkitt's Lymphoma -
Nasoparyngeal carcinoma -
Cervical Carcinoma -
Kaposi's sarcoma -

Arrastra y suelta para completar el texto.

    The lymphatic system.
    Hands.
    Head and neck.
    The cervix.
    Blood vessels.

Explicación

Pregunta 24 de 25

1

Lysis is a process in which non-enveloped viruses exit their host cell once they've multiplied enough. They do this by:

Selecciona una de las siguientes respuestas posibles:

  • Breaking open the cell, killing it and exiting.

  • Hollowing out the inside of the host cell to kill it and infecting other cells from the inside.

  • Exiting from a small hole in the cell that doesn't harm it.

  • Diffusing through the cell wall.

Explicación

Pregunta 25 de 25

1

Which type of viral infection is the most common?

Selecciona una de las siguientes respuestas posibles:

  • Asymptomatic.

  • Persistent/chronic.

  • Suffering, followed by recovery.

  • Death of the infected.

  • Congenital disease.

  • Contributory factor in several other diseases.

Explicación

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