Micro MCQ 3 Flashcards

(38 cards)

1
Q

What step does amantadine act on in Orthomyxoviruses replication?

A

Uncoating step

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2
Q

Where does transcription take place in Orthomyxoviruses?

A

Nucleus

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3
Q

How are Orthomyxoviruses transmitted?

A

Via droplets

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4
Q

Describe the structure of Orthomyxoviruses.

A

Linear, negative-sense, single-stranded RNA viruses that are segmented, helical, and enveloped

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5
Q

What symptom is caused by measles?

A

Koplik’s spots against molar teeth

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6
Q

Where do Paramyxoviruses replicate?

A

Epithelial cells of the upper respiratory tract

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7
Q

What is the most common cause of bronchiolitis?

A

Respiratory syncytial virus

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8
Q

What complications can mumps cause?

A

Orchitis, epididymitis, and infertility

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9
Q

What pigments does Pseudomonas aeruginosa produce?

A

Various pigments

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10
Q

Is Pseudomonas aeruginosa an opportunistic pathogen?

A

Yes

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11
Q

What are the optimum temperatures for Pseudomonas aeruginosa growth?

A

37°C and 42°C

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12
Q

What type of bacteria is Pseudomonas aeruginosa?

A

Gram-negative aerobic bacillus

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13
Q

What cell layers can human herpesviruses infect?

A

Many different cell layers

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14
Q

What type of infection does HSV establish?

A

Lytic, latent, and recurrent infections

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15
Q

Which herpesviruses are lymphotropic?

A

Cytomegalovirus (CMV) and Epstein-Barr Virus (EBV)

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16
Q

Name human coronaviruses.

A

HCoV-NL63, HCoV-OC43, HCoV-229E, HCoV-HKU1

17
Q

Is HCoV-RNA a designated human coronavirus?

18
Q

Name slow virus diseases.

A

Fatal Familial Insomnia (FFI), Kuru, Creutzfeldt-Jakob Disease (CJD), Progressive Multifocal Leukoencephalopathy (PML)

19
Q

Name viruses released without cell lysis.

A

Retroviruses, Papillomaviruses, Herpesviruses, Orthomyxoviruses

20
Q

What is the most virulent strain of H. influenzae?

A

H. influenzae type b

21
Q

What phenomenon does H. influenzae exhibit around Staphylococcus aureus?

A

Satellite phenomenon

22
Q

How many antigenic serotypes does H. influenzae have?

23
Q

What test detects all capsular serotypes of H. influenzae?

A

Rapid latex agglutination test

24
Q

What is Actinomyces spp. associated with?

A

Intrauterine device use

25
What condition requires prolonged treatment in bacterial associations?
Suppurative granuloma
26
What can Nocardia spp. cause?
Mycetoma
27
What feature is present in Corynebacterium diphtheriae?
Mycolic acids
28
What is the function of glycoprotein 41 (gp41)?
Aids in fusion of the virus with host cells
29
What protein is used to confirm HIV diagnosis?
P24 capsid protein
30
What disease affects birds due to Aspergillus?
Turkey X disease
31
What is a manifestation of aspergillosis?
Allergic bronchopulmonary aspergillosis
32
What refers to a fungal ball typically found in the lungs?
Aspergilloma
33
What are the infectious particles of Chlamydia called?
Elementary bodies
34
Are vaccines available for syphilis?
No
35
What heals spontaneously in syphilis?
Chancres
36
What Brucella species cause mild infections?
Brucella abortus and Brucella canis
37
What type of pathogens are Brucellae?
Facultative intracellular pathogens
38
What is the structure of poxvirus?
DNA-containing viruses with a central dumbbell-shaped core enclosed by an envelope