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Microbiology - Exam 2 > Questions - Misc > Flashcards

Questions - Misc Flashcards

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Biology 101 flashcards
1
Q

What is the most common cause of pink eye (Conjuctivitis)?

A

Adenovirus

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2
Q

What is the most frequent cause of asthma exacerbations?

A

Rhinovirus

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3
Q

Which viruses can cause Reye’s Syndrome:

A

Varicella Zoster Virus (VZV) (latent)
Adenovirus (latent)
Measles

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4
Q

How many serotypes does polio have?

A

3

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5
Q

What is the #1 cause of sporadic lethal encephalitis? And why is it lethal?

A

Herpes Simplex. Lethal because it is not in the markup.

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6
Q

What is the #1 cause of infectious blindness in the US?

A

Herpes keratitis

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7
Q

What is the 2nd most prevalent cause of the common cold?

A

Coronavirus

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8
Q

What virus can cause SARS (Severe Acute Respiratory Syndrome)?

A

Coronavirus

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9
Q

What are capsids and envelopes made out of?

A

Capsid is made of amino acids (protein)
Envelope (lipid membrane) is glycosylated and is made of host cell membrane and viral proteins. Envelopes are more common in animal viruses.

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10
Q

What is the advantage of envelopes of viruses being glycosylated?

A

It allows them to fly under the radar of our immune system.

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11
Q

Which types of viruses have helical and Icosahedral structures?

A

Human viruses

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12
Q

Which types of viruses have rod and cone structures?

A

Plant viruses

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13
Q

Which virus has a complex structure (not helical, icosahedral, rods, cones)?

A

Pox virus

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14
Q

What roles do viral envelope proteins play?

A

Host cell recognition and binding

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15
Q

What fulfills the role of host cell recognition and binding in a naked virus?

A

The capsid

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16
Q

A mutant virus may be referred to as?

A

Strain
Type (serotype)
Variant

17
Q

What is a strain?

A

The same virus with minor mutations isolated from different patients, often in different geographical locations

18
Q

What is a type (serotype)?

A

The same virus with mutations that cause it to respond differently to antibody detection.

19
Q

What is a variant?

A

The same virus with mutations that give it a different phenotype from wild-type

20
Q

Which are the 5 classic childhood diseases?

A 
Rubella
Measles
Roseola
Chicken pox
Fifth Disease
21
Q

Which virus causes Fifth Disease (dangerous because of chance of profound anemia turning into Aplastic crisis)?

A

Parvovirus B-19

22
Q

Which virus causes a “slapped cheek” rash?

A

Parvovirus B-19. Child is infectious when he has a cold, not when he has the slapped cheek rash.

23
Q

Which virus has pearly papule with umbilicate nodules?

A

Molluscum contagiosum (MC)

24
Q

Which viruses have asymptomatic shedding?

A 
Herpes Simplex 1 and 2
Rotavirus
Poliovirus
Cytomegalovirus
Norovirus
Hepatitis

Microbiology - Exam 2 (16 decks)

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