Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Microbiology
Microbiology -Chapter 5
| Question | Answer |
|---|---|
| viruses can infect: | all organisms |
| the correct hierarchic order for virus classification is: | Order, family, subfamily, genus ,species |
| viral capsomeres are composed of subunits called: | protomeres |
| RNA viruses belong to which of the following group according to the Baltimore classification system: | II, IV, V |
| a phage in a repressed stage is referred to as a: | prophage |
| the correct sequence of stages in the multiplication of animal viruses is: | adsorption, penetration, uncoating, replications ,assembly, release |
| a persistent infection that i snot lytic but productive is called a: | chronic infection |
| virus that belongs to the family Herpesviridae: | Epstein-Barr virus |
| transmissible spongiform encephalopathies are caused by: | prions |
| a virus that infects bacteria is referred to as: | bacteriophage |
| kaposi's sarcoma is caused by human herpesvirus number: | 8 |
| members of Picornaviridae are: | RNA viruses |
| a fully assembled virus is called a: | virion |
| group IV viruses according to the Baltimore classification system include the families Meteaviridae ,Pseudoviridae, and: | retroviridae |
| cytopathic effects as a result of a viral infection include: | altered shape, lysis, and membrane fusion |
| Discuss the two methods of viral classification: | International Committee on Taxonomy of Viruses (ICTV)—groups based on properties such as type of nucleic acid, presence of envelope, host, capsid shape, immunological properties, and disease caused. Hierarchy is: order, family, subfamily, genus, species. |
| Describe host cell damage resulting from viral infections. | Cytopathic effects, physiological effects, biochemical effects, genotoxic effects. |
| Name and describe the different morphological types of viruses. | Helical—coiled shape Icosahedral—capsids are 3-dimensional figures with 12 corners; 20 triangular faces and 30 edges Enveloped—have viral envelope surrounding nucleocapsid Complex—have various-shaped capsids (not icosahedral) along with other structur |
| Describe and contrast the multiplication of bacteriophages versus animal viruses. | Bacteriophage multiplication cycle: • Adsorption—attachment to cell • Penetration—entry into host cell • Assembly—copies of phage components replicated in host, maturation of newly formed phage, release of mature phages from host cell Anim |
| Explain and discuss the structure and pathogenicity of subviral agents. | Viroids—circular ssRNA genome, no protein coat; common plant pathogens. • Virusoids (satellites)—circular, ssRNA genome with ribozyme activity. To replicate they require that the host cell is infected with specific helper virus; generally plant patho |
| DNA Viruses (belong to group I or II viruses) | Virus Infection/Disease *Parvoviridae *Erythema/infectiosum *Papillomaviridae |
| RNA Viruses (belong to group III, ,IV, or V) | Virus Infection/Disease *Picronaviridae *Poliomyelitis, common |
| Multiplication of Animal Viruses | Adsorption, penetration, uncoating, replication, assembly, and release |
| viroids | they are all single stranded circles; replication does not depend on the presence of a helper virus, and no proteins are encoded. |
| prions | infectious agents that do not have a nucleic acid genome. Prions are normal proteins in animal tissue but when these particles become abnormally folded and shaped they become proteinaceous infectious particles that are not cellular organisms or viral part |
Created by:
naponte1
Popular Science sets