Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

LOM > Virology > Flashcards

Virology Flashcards

1
Q

Name the three domains of living organisms

A

Eubacteria
Archaea
eukaryota

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Name the 2 succesful cellular plans of organization

A

Eukaryotes
Prokaryotes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Distinguish between Eukaryotes and prokaryotes

A

Distinguished by the size and the type of internal structure
Eukaryotes
.A typical eukaryotes cells consists of
-Nucleus and chromosomes
-cell wall
-Organelles
-cytoskeleton
-Reproduce sexually
-Larger cells

Prokaryotes
.A typical prokaryote Cell:
-lack membrane bound organelles
-Naked DNA- no chromosomes
-Little/no internal compartmentation
-Reproduce by binary fission

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe the basic structure of a virus.

A

-Genetic material(DNA or RNA)
-a protein Shell(capsid)
-lipid envelope(sometimes)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a virion and what is the function of the virion?

A

-This are fully assembled viral particles.
-Serve to protect the genome and transfer it to other calls

(virus outside a host cell)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Give the different viral genome type.

A

DNA or RNA

DNA
-dsDNA
-SSDNA

RNA
-dsRNA
-ssRNA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Different types of Viral genomes

Howthey are shaped

A

Linear
Circular
Segmented

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name the 2 type of symmetry formed between capsomers

A

Cubical
Helical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Classify varuses
Sub-family
Order
Family
Genus
Species

A

Order Nidovirales
Family Coronaviridae
Sub-Family Orthocoronavirinae
Genus Betacoronavirus
Species ? 2019 novel coronavirus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Local vs systemic infection

A

Localised infection means in one part of the body.

systemic/disseminated infection means infection is in the whole body.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Viral tropism

A

Viral tropism refers to the specific cells, tissues, or organs that a virus targets and infects within a host organism.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Viral dissemination

A

Viral dissemination refers to the spread of viruses from their initial site of infection to other parts of the body, often through the bloodstream, lymphatic system, or neural pathways.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Viral pathogenesis

A

Viral pathogenesis refers to the process by which viruses cause disease within a host organism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Acute infection

A

Virus eliminated in a predictable period

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Persistent and latent infection

A

Persistence- Virus active for months or years
Latent- virus resides in cells in inactive state, for life, can reactivate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Routes of entry of disease

A

Ingestion
Inhalation
Inoculation
Contact(incl. sexual)
Blood organ t/plant
Congenital/vertical

17
Q

Asymptomatic infections are related to…

A

Pathogenecity

18
Q

Symptomatic infection are related to…

A

Virulence

19
Q

No foothhold are related to…

A

infectivity

20
Q

Define Basic reproductive ratio

A

This is the number of secondary cases that will arise following the primary case if the pathogen is introduced into a susceptible population.

21
Q

Define attack rate

A

The number of ill cases/number of individuals exposed

22
Q

List the determinants of infectivity

A

.Route of transmission
.Amount of virus shed/Viral load
.Duration of viral shedding
.Host susceptibility

23
Q

Define pathogenecity

A

Ability of the pathogen to cause disease

24
Q

Define Virulence

A

measure of severity of disease once disease occurs

25
Q

What determines prevalence of a virus

A

Infectivity
Population immunity
Duration/Chronicity of the infection

26
Q

Define Seroprevalence

A

Prevalence of population with antibody against a particular pathogen

27
Q

Define the following words which relate to pattern of viral disease, Sporadic, Endemic, Epidemic, Pandemic.

A

Sporadic-Disease rare, only occasional cases, risk of infection low for nonimmune
Endemic- Disease common, constantly high number of new cases reported
Epidermic- Disease usually rare but suddenly many new cases occurring.
Pandemic- Common disease of worldwide proportion

28
Q

How to prevent viral diseases.

A

.Vaccines
.Alter host behavior
.Control/eliminate vectors
.Control spreading/epidemics
.Prophylaxis

LOM (21 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions