Brainscape's Knowledge GenomeTM

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


See full index

Microbiology > Exam 2. Viruses > Flashcards

Exam 2. Viruses Flashcards

Intro to viruses

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

Virus

A

Associated with evolution of organisms because they can transfer genes
obligate intracellular
Acellular
genetic material surrounded by a protein coat
Not considered because they cant reproduce on their own, they need another cell to reproduce them
Some bacteria are also obligate intracellular, but because they have more of a prokaryote structure are considered living (Chlamydia and Rickettsia)

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

Nucleic Acid

A

can be either DNA or RNA but not both

double or single stranded

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

Nucleocapsid

A

Simple virus

capsid and nucleic acid

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

Capsid

A

Made of capsomeres

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

Helical

A

Continues helix of capsomeres forming a cylindrical nucleocapsid

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

Icosahedral

A

3D
20 sided and 13 even corners
Might be most efficient shape

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

Envelope

A

Protection and attachment
mostly in animals viruses
acquired when virus leaves host cell
spikes outside

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

Complex virus

A

Bacteriophage

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

Animal virus multiplication

A 
Adsorption
Penetration ( fusion-envelope fuses with membrane or endocytosis- entire virus is engulfed) 
Uncoating
Synthesis
Assembly 
Release
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Latent virus

A

Temperate viruses
in cell for long time and cause persistent infection
Lysogenic cycle
not good for therapy

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

Bacteriophage cycle

A 
Adsorption
Penetration
Replication
Assembly and maturation
Lysis and release
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Oncovirus

A

Mammalian virus that can cause cancer

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

Lysogenic cycle

A

Temperate virus
protect the cell from other lytic virus from entering
Results in spread or the virus without killing the host cell
Some pathogens are more virulent because they have prophages

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

Prophage

A

When virus is retained and copied during normal cell division

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

in-vitro

A

Cell tissue cultures

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

In vivo

A

Bird embryos

Live animal inoculation

17
Q

Prions

A 
Misfolded proteins
Kuru 
mad cow
No genetic material
Extremely resistant
spongiform encephalopathies
fatal diseases
50 years incubation period
18
Q

Satellite virus

A

Dependent on other viruses

19
Q

Viroid

A

Short pieces of RNA
no protein coat
Only in plants

20
Q

Satellite virus

A

Dependent on other viruses for replication

Adeno-virus: replicates only in cells infected with adenovirus

Microbiology (12 decks)

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