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
Microbio Ch.6
| Question | Answer |
|---|---|
| Why are acellular pathogens called so? Are they considered living? | They are not composed of cells/ Not living |
| Understand the characteristics of viruses. (slide 2) | DNA or RNA/ Capsid, envelope, or both/ Spikes/ Shapes: Helical, polyhedral, complex/ Needs to infect host to reproduce/ Acellular |
| What does it mean that viruses are obligate, intracellular parasites? | Must infect a host to reproduce/ Narrow host range |
| What is meant by a "narrow host range?" | Virus can either infect a human or a different species, but not both/ Not multiple different cells or organs |
| Define: capsid | Always surrounded by a protein coat |
| Define: envelope | Sometimes surrounded by a phospholipid membrane |
| What are the three main parts of a virus? | DNA or RNA/ Capsid/ (Sometimes) Envelope |
| Define: naked virus | Protein coat only |
| Define: enveloped virus. | Contain capsid and envelope |
| What are spikes and why are they significant? | Glycoprote9in extension of the capsid or envelope/ Attaches virus to other cells |
| How are viruses classified? What do ds and ss stand for? | By the type of DNA or RNA found within the capsid of the virus// Single stranded virus |
| What do we mean when we say that viruses "hijack" host cells? | Uses all of the hosts cell machinery to replicate |
| Understand the lytic cycle, including attachment | The phage attaches to the surface of the host |
| Understand the lytic cycle, including penetration | The viral DNA enters the host cell |
| Understand the lytic cycle, including biosynthesis | Phage DNA replicates and phage proteins are made |
| Understand the lytic cycle, including maturation | New phage particles are assmebled |
| Understand the lytic cycle, including lysis | The cell lyses, releasing eh newly made phages |
| Understand the lysogenic cycle. What makes it different from the lytic cycle? | Phage DNA incorporated into the host gnome/ Cells divide and prophage does too/ then the prophage enters the lytic cycle |
| What does temperate mean in relation to the lysogenic cycle? | Becomes part of the hose cell chromosome/ |
| Understand how viruses with animal hosts are different from bacteriophages 1-3 | Attachment/ Penetration. Cell engulfs virus by endocytosis/ Uncoating |
| Understand how viruses with animal hosts are different from bacteriophages 4-6 | Biosynthesis. Viral RNA enters nucleus, replicates by the viral RNA polymerase/ Assembly/ Release. the cell is not killed and continues to make new virus |
| What is uncoating? | Viral contents are released by breaking envelope |
| Define different types of infections and examples of each: persistent | Virus stays in certain tissues or organs of infected person// Herpes, Hepatitis C, HIV |
| Define different types of infections and examples of each: latent | Virus stays hidden or dormant inside the cell// Chicken pox-Shingles |
| Define different types of infections and examples of each: chronic. | Disease with symptoms that are recurrent or persistent over a long time// HIV |
| Understand the basics of viroids | Short strand of circular RNA/ No protein coat |
| Understand the basics of prions. | Infectious protein particle/ Caused by genetic mutation or spontaneously forms/ Responsible for transmissible spongiform encephalopathy. Ex. Kuru, Creutzfeldt-Jakob, and Mad Cow Disease |
Created by:
Clinton Perdue
Popular Biology sets