Viruses
Help!
|
|
||||
|---|---|---|---|---|---|
| Peter Meadewor | "Piece of Bad News Wrapped Up"
🗑
|
||||
| A piece of genetic marterial (RNA or DNA) wrapped up in a protein coat called a capsid. | Virus
🗑
|
||||
| Nucleocapsid | Virion
🗑
|
||||
| Virion | Virus particle
🗑
|
||||
| Virus | No metabolic activity; No organelles; No cystosol; No liquid
🗑
|
||||
| There may be some enyzmes within host. Enyzmes are not active in the virus. Just taken with them from the host | Virus
🗑
|
||||
| Basic structure | Nucleic acid, Capsid, Membrane envelop
🗑
|
||||
| Envelop | Bilipid layer around Nucleocaspid
🗑
|
||||
| Acquired when it exjt the host | envelop
🗑
|
||||
| Envelop | used for protection(hide form immune system of host).
🗑
|
||||
| Used for recognition for attachment | Envelop
🗑
|
||||
| Also fused with another cell of host | Envelop
🗑
|
||||
| Capsomere | Protein subunits of the capsid
🗑
|
||||
| Naked virus | Non-evelope virion
🗑
|
||||
| Spikes | carbohydrate-protein complexes that project fromthe surface of the envelopes;
🗑
|
||||
| Used by some viruses to attach to host. | Spikes
🗑
|
||||
| bacteriophages or phages | viruses that can infect bacteria
🗑
|
||||
| obligatory intracellular parasites | absolutely require living host cellss in order to multiply.
🗑
|
||||
| the spectrum of host cells the virus can infect. | host range
🗑
|
||||
| Nucleic acid structure | DNA or RNA
🗑
|
||||
| Single or double standed: RNA may pair up | Nucleic acid structure
🗑
|
||||
| Linear, circular, or segmented chromosomes | Nucleic acid structure
🗑
|
||||
| Nucleic acid structure | RNA genomes unique to viruses
🗑
|
||||
| Nucleic acid enclosed by a | capsid
🗑
|
||||
| Capsomere | Individual subunits that make up the capsid
🗑
|
||||
| Has 1 protein or more proteins | capsid
🗑
|
||||
| capsid | proteins useful in identification; highly specific
🗑
|
||||
| helical viruses | resemble long rods that may be rigid or flexible
🗑
|
||||
| Ex: Ebola hemorrhagic fever and rabies | helical viruses
🗑
|
||||
| Ex: Tobacco Mosiac Virus and SARS | helical capsid
🗑
|
||||
| polyhedral capsid | many sided
🗑
|
||||
| 2 types of capsid | helical & polyhedral
🗑
|
||||
| Icosahedron capsid | 20 sides
🗑
|
||||
| Ex: Poliovirus | icosahedral virus
🗑
|
||||
| Complex capsid | bacteriophages
🗑
|
||||
| Ex: rabies | complex virus
🗑
|
||||
| Ex:Poliomyelitis & herpes simplex & Rubella | polyhedral
🗑
|
||||
| Can live on surfaces | naked virion
🗑
|
||||
| naked virion | more resistant to harsh conditions.
🗑
|
||||
| A virus that is very fragile. | An envelope virus
🗑
|
||||
| Contracted by droplet nuleci or blood or sexual contact | An envelope virus
🗑
|
||||
| Poxvirus | small pox
🗑
|
||||
| Paramyxovirus | Influzena
🗑
|
||||
| Larger viruses about 200 to 300 nanometer | poxvirus & paramyxovirus
🗑
|
||||
| Old scheme (host) | Based what they could infect
🗑
|
||||
| Based on the DNA or RNA they have | New scheme
🗑
|
||||
| ICTV | International Committee of Taxnomy on Viruses
🗑
|
||||
| Virus classification | RNA, DNA, nucleic acid, shape, envelope, and size
🗑
|
||||
| Classification naming | ICTV
🗑
|
||||
| lytic cycle | ends with the lysis and death of the host cell
🗑
|
||||
| lysogenic cyle | host cell remains alive
🗑
|
||||
| Attachment, penetration, synthesis, assembley, and release | Lytic replication of bacteriophage
🗑
|
||||
| attachment | phage attaches to host cell
🗑
|
||||
| penetration | phage pentrates host cell and injects its DNA using an enzyme called lysozyme in its tail to break the host cell walls down to enter the cell
🗑
|
||||
| synthesis | phage DNA directs synthesis of viral components by the host cell
🗑
|
||||
| viral components are assembled into virions | maturation
🗑
|
||||
| release | host cell lyses and new virions are released
🗑
|
||||
| lysogeny | the phage reamins latent (inactive)
🗑
|
||||
| prophage | the circle can recombine with and become part of the circular bacterial DNA
🗑
|
||||
| RNA viruses (non-envelope) | Picornavirus
🗑
|
||||
| Reovirus | RNA viruses (non-envelope)
🗑
|
||||
| RNA viruses (envelope) | Toga virus; Rhabdovirus; Coronvirus; Orthomyxovirus; Paramyovirus; Bunyavirus; Arena virus; Retrovirus
🗑
|
||||
| Picornavirus | 24 hr bug/Cold/Hep A
🗑
|
||||
| Reovirus | Gasterointestinal/Respiratory Infections
🗑
|
||||
| German Measles/Rubella | Toga virus
🗑
|
||||
| Rabies | Rhabdovirus
🗑
|
||||
| Coronavirus | SARS
🗑
|
||||
| Influena | Orthomyxovirus
🗑
|
||||
| Measles | Paramyxovirus
🗑
|
||||
| Bunyavirus/Huntavirus | Hemoraic fever
🗑
|
||||
| Arenavirus | Alsa fever
🗑
|
||||
| Retrovirus | HIV/Human T-cell leukemia
🗑
|
||||
| DNA (non-envelope) viruses | Parvovirus; Papovirus; Adenovirus
🗑
|
||||
| Hepadnavirus; Poxvirus; Herpesvirus | DNA (envelope) Viruses
🗑
|
||||
| Erythemia (5th disease) | Parvovirus
🗑
|
||||
| Papovavirus | Papilloma causes warts on epitheial cells
🗑
|
||||
| Adenovirus | Cause respiratory infections
🗑
|
||||
| Hep B | Hepadnavirus
🗑
|
||||
| Poxvirus | Smallpox/Cowpox
🗑
|
||||
| Herpes virus | Chicken pox; Shingles; Oral & Vaginal Herpes
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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
Created by:
mgree057