Study sets matching "microbiology viruses"

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Study sets matching "microbiology viruses"

24 terms
Microbiology: Viruses
virus
latent virus
viroid
prion
a particle that contains RNA or DNA and can infect a host cell
a virus that stays in the lytic cycle for a long time and the…
short strand of RNA that infects plants
infectious protein
virus
a particle that contains RNA or DNA and can infect a host cell
latent virus
a virus that stays in the lytic cycle for a long time and the…
78 terms
Microbiology Viruses
Discovery of Viruses
Characteristics of Viruses
Viral components of viruses: Covering
Capsid
Could not see them or isolate them, so it was the 1930s befor…
Only see w/ microscope, infectious, can't live alone-must use…
Covering always has a capsid and some have an envelope over t…
Capsomeres (proteins) in patterns
Discovery of Viruses
Could not see them or isolate them, so it was the 1930s befor…
Characteristics of Viruses
Only see w/ microscope, infectious, can't live alone-must use…
77 terms
Microbiology viruses
orthopoxvirus
Herpes type 1
Herpes type 2
Varicelloviru
smallpox
oral, cold sores
Genital herpes, outbreaks on genitals, buttocks, or inner thigh
chicken pox),
orthopoxvirus
smallpox
Herpes type 1
oral, cold sores
131 terms
Microbiology Viruses
Bacteriophage
Virus
Virion
Capsid
A virus that infects and replicates within bacterial cells.
An infection agent consisting of DNA and RNA and surrounded b…
Naked or enveloped
Protein that covers viral genome.... Can be icosahedral, helical…
Bacteriophage
A virus that infects and replicates within bacterial cells.
Virus
An infection agent consisting of DNA and RNA and surrounded b…
44 terms
Microbiology Viruses
Virion
Capsids
Nucleocapsid
Naked virus
Fully formed virus able to establish an infection
Viral protein coats that enclose and protect nucleic acid
A virus's capsid together with the nucleic acid
A virus without an envelope
Virion
Fully formed virus able to establish an infection
Capsids
Viral protein coats that enclose and protect nucleic acid
Microbiology - viruses
virus
name for virus death
virion
viroid
any infectious, non-living particle composed of a genetic cor…
deactivation
a virus particle
any particle more similar to virus than any other biological…
virus
any infectious, non-living particle composed of a genetic cor…
name for virus death
deactivation
Microbiology - Viruses
Parvovirus/Erythrovirus B19 virus
Human papillomavirus
Polyomavirus/BK & JC virus
Adenovirus
non-enveloped... linear ssDNA virus (only ssDNA)... DISEASES:... fift…
non-enveloped... circular dsDNA... DISEASES:... types 1,2 - skin wart…
non-enveloped... circular dsDNA... both only seen in IC patients…
non-enveloped... linear dsDNA... DISEASES:... conjunctivitis... febrile…
Parvovirus/Erythrovirus B19 virus
non-enveloped... linear ssDNA virus (only ssDNA)... DISEASES:... fift…
Human papillomavirus
non-enveloped... circular dsDNA... DISEASES:... types 1,2 - skin wart…
243 terms
Microbiology Viruses
What are the major parts of a virus?
What is the function of viral particle…
What are the different forms of the vi…
What are the different shapes the vira…
virions, viral genome, viral capsid, viral nucleocapsid, vira…
made of RNA or DNA and can be encased in a protein capsid (na…
single or double stranded, linear or circular, segmented or n…
icosahedral, helical, or complex
What are the major parts of a virus?
virions, viral genome, viral capsid, viral nucleocapsid, vira…
What is the function of viral particle…
made of RNA or DNA and can be encased in a protein capsid (na…
31 terms
Microbiology: Viruses
• General properties of viruses and th…
Viral Hosts and Taxonomy
Virus
Virology
-Parasites that utilize host cell machinery to multiply and s…
Viruses can be classified on the basis of the hosts they infe…
genetic element that cannot replicate independently of a livi…
the study of viruses
• General properties of viruses and th…
-Parasites that utilize host cell machinery to multiply and s…
Viral Hosts and Taxonomy
Viruses can be classified on the basis of the hosts they infe…
Microbiology (Viruses)
Adenovirus respiratory tract infections
Canine Distemper
Canine Herpesvirus
Hepatitis B
DNA virus Adenovirus. This is a major cause of Upper Respirat…
DNA Virus. Parmyxovirus Spread through aerosol droplets and c…
DNA Virus Herpesvirus Causes fatal hemorrhagic disease in pup…
DNA Virus U.S. World Hepadnavirus One of the ten most common…
Adenovirus respiratory tract infections
DNA virus Adenovirus. This is a major cause of Upper Respirat…
Canine Distemper
DNA Virus. Parmyxovirus Spread through aerosol droplets and c…
132 terms
Microbiology - Viruses
DNA... Naked
Adenovirus infection
Respiratory droplets ... Fecal-oral
- Children ... - Outbreaks in military ... -…
Morphology of adenovirus
What is the most common cause of infection in the adenoids an…
Transmission of adenovirus
People are risk fro adenovirus infection
DNA... Naked
Morphology of adenovirus
Adenovirus infection
What is the most common cause of infection in the adenoids an…
56 terms
Microbiology: Viruses
What is a virus?
What is another term for a virus parti…
What kind of genetic material does a v…
Why are viruses described as ubiquitous?
A virus is a NONCELLULAR PARTICLE that must INFECT a HOST CEL…
Also called a VIRION.
A virion consist of a SINGLE nucleic acid (DNA or RNA) strand…
Viruses are found in all environments and infect all forms of…
What is a virus?
A virus is a NONCELLULAR PARTICLE that must INFECT a HOST CEL…
What is another term for a virus parti…
Also called a VIRION.
36 terms
Microbiology-Viruses
What cells can viruses infect?
What are viruses?
What does a virus made up of (at the l…
How do we classify viruses in the past?
Bacteria, algae, fungi, protozoa, plants, and animals.
Obligate intracellular parasites.
Nucleic acid (RNA or DNA-not both) and a protein shell (capsid)
Viruses used to be classified on the basis of their hosts and…
What cells can viruses infect?
Bacteria, algae, fungi, protozoa, plants, and animals.
What are viruses?
Obligate intracellular parasites.
31 terms
Microbiology | Viruses
Herpes Simplex(herpes)
HSV 1
HSV 2
Varicella zoster (VZV) (herpes)
Transmit: ... -aerosol (droplet) ... -direct touch (kiss, sex,drink…
Transmit: ... -aerosol/droplet ... Sickness: ... -hips and up infecti…
Transmit: ... -sex, birth... Sickness: ... -genital herpes... Prevent:…
Transmit: ... direct touch ... -for life (dormant or active)... sickn…
Herpes Simplex(herpes)
Transmit: ... -aerosol (droplet) ... -direct touch (kiss, sex,drink…
HSV 1
Transmit: ... -aerosol/droplet ... Sickness: ... -hips and up infecti…
12 terms
Microbiology Viruses
Properties of Viruses
Capsid
Virions
Spikes
Protection of genome inside capsid... Attachment to host cell re…
Protein that covers viral genome... Can be icosahedral, helical,…
Can be naked or enveloped
Used for attachment to host cell
Properties of Viruses
Protection of genome inside capsid... Attachment to host cell re…
Capsid
Protein that covers viral genome... Can be icosahedral, helical,…
Microbiology - Viruses
Genome
DS vs SS
Virion
Nucleocapsid
The full complement of DNA and RNA carried by a cell; viruses…
dsDNA... ssDNA... dsRNA... ssRNA
complete virus particle... At minimum: consists of greater than…
Naked or enveloped; all viruses have
Genome
The full complement of DNA and RNA carried by a cell; viruses…
DS vs SS
dsDNA... ssDNA... dsRNA... ssRNA
74 terms
Microbiology (Viruses)
Viruses
Icosahedral (virus shape)
Helical (virus shape)
Viral components
-non-living antagonists... -purpose is to kill
20 triangular sides ... -crystal shaped
spiral shape
-all viruses have two components... -HIV has 4 components ... -has…
Viruses
-non-living antagonists... -purpose is to kill
Icosahedral (virus shape)
20 triangular sides ... -crystal shaped
41 terms
Microbiology Viruses
Viruses
Viroids
Virusoids
Prions
protein and nucleic acid
only closed, circular RNA... infectious agents ... do not encode ge…
only closed, circular RNA... (satellite RNAs)... encode for one or…
Polypeptide/protein only... cause variety of degenerative diseas…
Viruses
protein and nucleic acid
Viroids
only closed, circular RNA... infectious agents ... do not encode ge…
Microbiology- viruses
all viral diseases (key)
Measles (dermatropic)
Rubella (dermatropic)
Variola (dermatropic)
1. virus... 2. virus type... 3. disease... 4. clinical name... 5. portal…
paromyxovirus ... measles... rubeola... respiratory ... respiratory ... last…
paromyxovirus... german measles... rubella ... respiratory ... respirator…
pox... small pox... variola... unknown entry ... unknown exit... eradicated…
all viral diseases (key)
1. virus... 2. virus type... 3. disease... 4. clinical name... 5. portal…
Measles (dermatropic)
paromyxovirus ... measles... rubeola... respiratory ... respiratory ... last…
33 terms
Microbiology-Viruses
Viruses
What do viruses consist of
Host range
size of viruses
are intracellular parasites that take over the infected cells…
nucleic acid (DNA or RNA) with a protective capsid, some an e…
set of cells that a particular virus infects
to - 100 um
Viruses
are intracellular parasites that take over the infected cells…
What do viruses consist of
nucleic acid (DNA or RNA) with a protective capsid, some an e…
Microbiology Viruses
Virus Definition
Viron
Naked particles (nonenveloped)-
Enveloped particles
obligate intracellular parasites; whose genome is DNA or RNA,…
is a complete fully functional viral particle capable of infe…
genome surrounded by a protein coat called a capsid composed…
genome surrounded by a capsid and this nucleocapsid surrounde…
Virus Definition
obligate intracellular parasites; whose genome is DNA or RNA,…
Viron
is a complete fully functional viral particle capable of infe…
25 terms
Microbiology - Viruses
afflictions
antibody
asymptomatic
ataxia
...
...
...
...
afflictions
...
antibody
...
10 terms
Viruses Microbiology
Orthomyxviridae
Retroviridae
Adenoviridae
Coronoaviridae
RNA virus: influenza
RNA virus: HIV, RNA tumors, leukemia
DNA virus: respiratory infections
RNA virus: SARS, upper respiratory infections
Orthomyxviridae
RNA virus: influenza
Retroviridae
RNA virus: HIV, RNA tumors, leukemia
48 terms
Microbiology Viruses
RNA Viruses
The Biology of Orthomyxoviruses: Influ…
Most Common Influenza
2nd Common Influenza
Assigned to one of 12 families based on envelope, capsid, and…
*ssRNA consists of 10 genes encoded on 8 separate RNA segment…
Influenza A
Influenza C
RNA Viruses
Assigned to one of 12 families based on envelope, capsid, and…
The Biology of Orthomyxoviruses: Influ…
*ssRNA consists of 10 genes encoded on 8 separate RNA segment…
Microbiology viruses
Virus
Virus composition
Virus culture
Virus size
obligate intracellular parasites (pathogens): to persist they…
Small amount of DNA surrounded by protein; protein; nucleic a…
Need host cells; first must culture host cells; then infect w…
Come in a range of sizes
Virus
obligate intracellular parasites (pathogens): to persist they…
Virus composition
Small amount of DNA surrounded by protein; protein; nucleic a…
microbiology : viruses
paralytic poliomyelitis
Martinus Belijericle
Tobacco Massic Virus
contagion vidium audium; livable livin…
3700 BC the earliest written record of a virus infection in a…
who was credited with the discovery of viruses?
what was the first virus that was found ?
who called TMV _______ ________ __________ & this means what?
paralytic poliomyelitis
3700 BC the earliest written record of a virus infection in a…
Martinus Belijericle
who was credited with the discovery of viruses?
29 terms
Viruses - Microbiology
What is a virion?
What are the three possible shapes for…
What is the capsid and what is it for?
What do viruses use to replicate?
A mature virus particle
Helical, Icosahedral (20 equilateral triangles), Complex
Protein coat that has DNA or RNA (genome); protection
The host cell machinery
What is a virion?
A mature virus particle
What are the three possible shapes for…
Helical, Icosahedral (20 equilateral triangles), Complex
Microbiology Viruses
Rabies Virus (hydrophobia)
Rubella virus (German measles)
Rubeola virus (Measles)
Varicella Virus (Chicken pox)
Mode of Transmission: animal bite or inhalation of aerosolize…
Mode of Transmission: inhalation of respiratory droplets... S/S…
Mode of Transmission: inhalation of respiratory droplets... S/S…
Mode of Transmission: inhalation of respiratory droplets ... S/…
Rabies Virus (hydrophobia)
Mode of Transmission: animal bite or inhalation of aerosolize…
Rubella virus (German measles)
Mode of Transmission: inhalation of respiratory droplets... S/S…
8 terms
Microbiology viruses
Adenoviridae
Papillomaviridae
Herpesviridae
Picornaviridae
(dsDNA naked)... Mastadenovirus (common cold)
(dsDNA naked)... Papillomavirus (HPV)
(dsDNA envelope)... simplexvirus (oral and genital warts) ... varic…
(ssRNA naked)... Hepatovirus (hepatitis A)... Enterovirus (polio)
Adenoviridae
(dsDNA naked)... Mastadenovirus (common cold)
Papillomaviridae
(dsDNA naked)... Papillomavirus (HPV)
54 terms
Microbiology Viruses
virion
poxviruses
nucleocapsid
Capsid
consists of one or more molecules of DNA or RNA enclosed in a…
viruses that cause small pox. largest animal viruses
nucleic acid DNA or RNA. simplest form
protein coat that contains the nucleic acid and protects the…
virion
consists of one or more molecules of DNA or RNA enclosed in a…
poxviruses
viruses that cause small pox. largest animal viruses
41 terms
Microbiology (Viruses)
Adenovirus respiratory tract infections
Canine Distemper
Canine Herpesvirus
Hepatitis B
DNA virus Adenovirus. This is a major cause of Upper Respirat…
DNA Virus. Parmyxovirus Spread through aerosol droplets and c…
DNA Virus Herpesvirus Causes fatal hemorrhagic disease in pup…
DNA Virus U.S. World Hepadnavirus One of the ten most common…
Adenovirus respiratory tract infections
DNA virus Adenovirus. This is a major cause of Upper Respirat…
Canine Distemper
DNA Virus. Parmyxovirus Spread through aerosol droplets and c…
Microbiology - Viruses
basic structure
lytic reproduction cycle
lysogenic reproduction cycle
prophage
particles made up of protein, genetic material, and sometimes…
a virus injects DNA into a host, viral genes are transcribed…
viral DNA inserts itself into the DNA of the host cell. The v…
DNA that's embedded in the host DNA
basic structure
particles made up of protein, genetic material, and sometimes…
lytic reproduction cycle
a virus injects DNA into a host, viral genes are transcribed…
28 terms
Microbiology - Viruses
virus
virus shapes
genome
capsid
infective agent, only can reproudce within a host cell
genetic information within a virus
outer protein coat composed of chemically bound capsomeres; g…
virus
infective agent, only can reproudce within a host cell
virus shapes
54 terms
Microbiology Viruses
virion
poxviruses
nucleocapsid
Capsid
consists of one or more molecules of DNA or RNA enclosed in a…
viruses that cause small pox. largest animal viruses
nucleic acid DNA or RNA. simplest form
protein coat that contains the nucleic acid and protects the…
virion
consists of one or more molecules of DNA or RNA enclosed in a…
poxviruses
viruses that cause small pox. largest animal viruses
Microbiology Viruses
Shapes
Lysogenic conversion: What is the role…
What is lysogenic conversion and why i…
Enveloped virus
Icosahedral, helical, complex
To keep phage transcriptionally silent. Remains latent (inact…
Transferring of genetic material; the process of lysogeny can…
Over the capsid; consists of a combination of lipids, protein…
Shapes
Icosahedral, helical, complex
Lysogenic conversion: What is the role…
To keep phage transcriptionally silent. Remains latent (inact…
Microbiology-Viruses
Variola
Vaccinia
Herpes Simplex 1
SARS virus
D: Small Pox... CPE: Adsorption... Misc: Jenner discovered vaccine
D: Cowpox... CPE: produce eruptive Skin POX... Not as severe as sim…
Fever Blister... Cold Sore... face and mouth
Severe Acute Respiratory Syndrome... 2003-China... flu like symptom…
Variola
D: Small Pox... CPE: Adsorption... Misc: Jenner discovered vaccine
Vaccinia
D: Cowpox... CPE: produce eruptive Skin POX... Not as severe as sim…
31 terms
Microbiology: Viruses
• General properties of viruses and th…
Viral Hosts and Taxonomy
Virus
Virology
-Parasites that utilize host cell machinery to multiply and s…
Viruses can be classified on the basis of the hosts they infe…
genetic element that cannot replicate independently of a livi…
the study of viruses
• General properties of viruses and th…
-Parasites that utilize host cell machinery to multiply and s…
Viral Hosts and Taxonomy
Viruses can be classified on the basis of the hosts they infe…
37 terms
Microbiology- Viruses
ssRNA can be ____ or ___
RNA viruses that have sense (+) RNA ca…
RNA viruses that have antisense (-) RN…
antisense RNA viruses must carry their…
positive, negative
directly translated
template sequence
RNA from RNA
ssRNA can be ____ or ___
positive, negative
RNA viruses that have sense (+) RNA ca…
directly translated
12 terms
Microbiology Viruses
Influenza Type A
Influenza Type B
Influenza Type C
Hemagglutinin (HA, H)
causes the majority of flu cases in a given year, with an inc…
almost exclusively infects humans and is less common than Inf…
causes mild respiratory illness, does not cause epidemics and…
spikes function by attaching to pulmonary epithelial cells an…
Influenza Type A
causes the majority of flu cases in a given year, with an inc…
Influenza Type B
almost exclusively infects humans and is less common than Inf…
29 terms
microbiology - viruses
definition of virus
virology
general nature of viruses
viral characteristics of life
virus means poison
the study of viruses
semi-living have only some characteristics of life
-no metabolism... -able to reproduce only with considerable help…
definition of virus
virus means poison
virology
the study of viruses
54 terms
Microbiology- Viruses
What is a viron?
Where does virons live and where do th…
Capsid
Poxviridae
Fully assembled infective virus, has a nucleic acid core.
Infect host cell, replicate in host cells
Core enclosed within a shell of proteins.
Double-stranded DNA, enveloped
What is a viron?
Fully assembled infective virus, has a nucleic acid core.
Where does virons live and where do th…
Infect host cell, replicate in host cells
44 terms
Microbiology Viruses
Virion
Capsids
Nucleocapsid
Naked virus
Fully formed virus able to establish an infection
Viral protein coats that enclose and protect nucleic acid
A virus's capsid together with the nucleic acid
A virus without an envelope
Virion
Fully formed virus able to establish an infection
Capsids
Viral protein coats that enclose and protect nucleic acid
14 terms
Microbiology - Viruses
What is a virus?
What are the characteristics of viruses?
Describe the structure of viruses.
How do viruses enter cells?
A package of genetic information protected by a protein shell…
1. Package genome inside particle... 2. Viral genome codes for i…
• Capsomeres are structural subunits... containing several prote…
• Lipid envelopes are derived from cellular membranes... • Studd…
What is a virus?
A package of genetic information protected by a protein shell…
What are the characteristics of viruses?
1. Package genome inside particle... 2. Viral genome codes for i…
7 terms
Microbiology viruses
What are viruses ?
What is the viral genome ?
What is a virion?
What are the 6 steps to the Lytic cycl…
Are obligate intracellular parasites that multiply inside liv…
Is a single type of nucleic acid either RNA or DNA and single…
Is a complete fully developed virus particle composed of a nu…
1. The bacteriophage attaches to the bacterial cell... 2. Inject…
What are viruses ?
Are obligate intracellular parasites that multiply inside liv…
What is the viral genome ?
Is a single type of nucleic acid either RNA or DNA and single…
10 terms
Microbiology: Viruses
What is the purpose of a capsid and en…
What is a capsid?
What are the shapes of capsids?
What is the envelope and what does it…
Protects the nucleic acid when the virion is outside the host…
The capsid is an external protein coat that ALL viruses have.…
Helical - cylindrical nucleocapsid with rod shaped capsomers.…
The envelope is a membrane covering exterior to the capsid. N…
What is the purpose of a capsid and en…
Protects the nucleic acid when the virion is outside the host…
What is a capsid?
The capsid is an external protein coat that ALL viruses have.…
17 terms
Microbiology-Viruses
What are the various types of viral ge…
RNA + strand
RNA - strand
Retro virus
DNA, RNA, single stranded, double stranded, linear, circular
: Viral RNA functions as a template for synthesis of RNA poly…
Viral enzyme copies viral RNA to make mRNA in cytoplasm. Cell…
contain RNA & reverse transcriptase enzyme
What are the various types of viral ge…
DNA, RNA, single stranded, double stranded, linear, circular
RNA + strand
: Viral RNA functions as a template for synthesis of RNA poly…
65 terms
Microbiology: viruses
The influenza virus is from what famil…
What is important regarding the influe…
important antigenic proteins on influe…
reassortment with other species allows…
orthomyxovirus
8 segmented genome which provides lots of opportunites for re…
hemaglutinin (HA)... neuraminidase (NA)... Both serve as spikes for…
antigenic shift
The influenza virus is from what famil…
orthomyxovirus
What is important regarding the influe…
8 segmented genome which provides lots of opportunites for re…
133 terms
Microbiology - Viruses
Latent infection is seen in... a) Small…
Lassa fever... a) Has been known in nor…
Regarding prion protein which of the f…
Diagnostic of Rabies... a) Guarneri bod…
c) Chicken pox
Lassa fever virus was first seen in 1969 in the Nigerian town…
b) It catalyses abnormal folding of other proteins... Prions ar…
b) Negri bodies... Rapid diagnosis of rabies infection in the a…
Latent infection is seen in... a) Small…
c) Chicken pox
Lassa fever... a) Has been known in nor…
Lassa fever virus was first seen in 1969 in the Nigerian town…
Microbiology: Viruses
Background on viruses?
How did viruses get their name?
What are 3 traits established for viru…
Explain the different types of Single…
Viruses were actually crystallized; this occurred by being is…
Thought disease agent for Tobacco Mosaic Disease was a poison…
1. Have Single formed Nucleic Acid; either DNA or RNA... but no…
1. Viruses either have DNA or RNA but not both, unlike... any l…
Background on viruses?
Viruses were actually crystallized; this occurred by being is…
How did viruses get their name?
Thought disease agent for Tobacco Mosaic Disease was a poison…
Viruses for Microbiology
DNA viruses
What does Variola cause?
What does Herpes Simplex 1 cause?
What does Herpes Simplex 2 cause?
...
small pox
fever blisters
genital herpes
DNA viruses
...
What does Variola cause?
small pox
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