Brainscape's Knowledge GenomeTM

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


See full index

introduction to fungi - hepatitis > Introduction To Virus > Flashcards

Introduction To Virus Flashcards

1
Q

Any of various simple submicroscopic obligate parasites of plants, animals, and
bacteria?

A

Virus

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

They are classified as functionally
_____ or _______.

A

active, inactive

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

Virus consists of its _____ or essentially of a core of _____, surrounded by a protein coat called _____?

A

Genome, RNA or DNA, caspid

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

Is the viral genome (viral DNA or RNA) + protein coat (capsid)?

A

Nucleocapsid

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

It can posses an outer membrane covering the capsid?

A

Enveloped virus

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

can be non-enveloped viruses?

A

Naked Viruses

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

Virus family has the suffix _____?

A

-viridae

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

The protein shell or coat surrounding the viral genome (viral RNA or DNA)?

A

Caspid

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

3 types of caspid symmetry?

A

Icosahedral
Helical
Complex

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

The capsid proteins are arranged in equilateral triangles that
enclose the viral genome?

A

Icosahedral

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

The capsid proteins are arranged around the core in a spiral
manner?

A

Helical

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

Virus cannot reproduce on their own. They must invade a cell, take over the cell’s
machinery and instruct the machinery to produce enzymes and new viral structural
protein.

A

Viral Replication

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

6 steps of viral replication?

A
  1. Absorption
  2. Penetration
  3. Uncoating
  4. Synthesis of viral nucleic acid and structural protein
  5. Assembly/maturation
  6. Release
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The first step in infection of a cell is attachment to the cell surface. This is a very
specific process in which the viral surface structure interact to a particular
receptor the cell surface of the host cell.

A

Absorption

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

The virus enters the cell either by: Fusing with the plasma membrane, Endocytosis, or Fusing with the plasma membrane and injecting its genome to the host cell?

A

Penetration

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

A virus that infects bacteria?

A

Bacteriophage

17
Q

The viral genome is released from the capsid into the cytoplasm or directly into
the nucleus?

A

Uncoating

18
Q

New virus particles (virions) are assembled?

A

Assembly/maturation

19
Q

Other term for cell rapture?

A

Cell Lysis

20
Q

The virion will tear off a piece of the host’s cell membrane as it exits which
will become the envelope of the newly formed virus?

A

Bud form

21
Q

The last step of virus reproduction where it can undergo either through cell lysis or bud form?

A

Release

22
Q

The Two modes of Viral Replication:

A
  1. Lytic cycle
  2. Lysogenic cycle
23
Q

The virus enters the cell, replicates itself hundreds of times using
the host cell machinery, and then bursts out of the cell, destroying it.?

A

Lytic cycle

24
Q

Virus genome that attaches itself to the host DNA and,
replicates when the host cell divides?

A

Lysogenic cycle

25
Q

Causes no harm to the
host cell, an induction event, such as exposure to ultraviolet light, can cause this latent
stage to enter the lytic cycle?

A

Lysogenic cycle

26
Q

Is based on the nucleotides in the virus, its mode of replication, the structure
and symmetry of the structural proteins (capsids) and the presence or absence of an envelope?

A

Viral Replication

27
Q

Two types of DNA virus?

A
  1. Double-stranded DNA
  2. Single stranded DNA
28
Q

Two types of RNA virus?

A
  1. RNA sense
  2. RNA antisense
29
Q

Viruses include poxviruses, herpesviruses, adenoviruses,
papovaviruses and polyomaviruses?

A

Double-stranded DNA

30
Q

viruses include parvoviruses.
DNA viruses usually replicate in the nucleus of host cells by producing a polymerase that
reproduces viral DNA. Viral DNA is not usually incorporated into host chromosomal DNA?

A

Single-stranded DNA

31
Q

May serve directly as mRNA and be translated into structural
protein and an RNA-dependent RNA polymerase.

A

RNA sense

32
Q

Contains an RNA-dependent RNA polymerase that transcribes
the viral genome into mRNA. Alternatively, the transcribed RNA can act as a template for
further viral (antisense) RNA.

A

RNA antisense

introduction to fungi - hepatitis (8 decks)

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