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biology chapter 18
| Question | Answer |
|---|---|
| an infectious particle made only of a strand of DNA or RNA surrounded by a protein coat | virus |
| any living thing organism or particle that can cause infectious disease. aka an infectious agent | pathogen |
| infectious particles that cause disease in plants | viroid |
| an infectious particle made only of proteins that can cause other proteins to fold incorrectly. | prion |
| genetic material surrounded by a protein shell. a viroid | capsid |
| viruses that infect bacteria | bacteriophage |
| an infection pathway in which the host cell bursts, releasing the new viral offspring into the hosts system where each then infects another cell | lytic infection |
| an infection where a phage combines its DNA into the hosts cells DNA | lysogenic infection |
| the phage, DNA inserted into the host cells DNA. | prophage |
| viruses differ in what and in what of entering host cells? | shape and ways |
| what kind structure does a virus have? | simple |
| what are the three viruses? | enveloped helical and polyhedral |
| how do viruses of eukaryotes enter? | endocytosis |
| Viruses of eukaryotes also fuse with what? | membrane |
| what are the two types of infections viruses cause? | lytic and lysogenic |
| what are some examples of viral infections? | common cold influenza SARS HIV |
| what kind of defense does the body have against viruses? | natural |
| vaccines are made from what? | weakened pathogens |
| what stimulates the body's own immune response? | vaccine |
| vaccines prepare the immune system for what? | future attack |
| a rapid outbreak of an infection that affects many people | epidemic |
| a rapid outbreak of an infection that affects many people | epidemic |
| a virus that contains RNA and uses an enzyme called reverse transcriptage to make a DNA copy | retrovirus |
| a virus that contains RNA and uses an enzyme called reverse transcriptage to make a DNA copy | retrovirus |
| a virus that contains RNA and uses an enzyme called reverse transcriptage to make a DNA copy | retrovirus |
| a virus that contains RNA and uses an enzyme called reverse transcriptage to make a DNA copy | retrovirus |
| what is the body's first defense against infection | the skin |
| a virus that contains RNA and uses an enzyme called reverse transcriptage to make a DNA copy | retrovirus |
| what is the body's first defense against infection | the skin |
| what is the body's first defense against infection | the skin |
| what is the body's first defense against infection | the skin |
| what is the body's first defense against infection | the skin |
| what is one way in which viruses commonly enter the body | through mucous membranes in the nose or mouth |
| what is one way in which viruses commonly enter the body | through mucous membranes in the nose or mouth |
| what is one way in which viruses commonly enter the body | through mucous membranes in the nose or mouth |
| what is one way in which viruses commonly enter the body | through mucous membranes in the nose or mouth |
| how do viruses trick cells into letting them in | by using their surface proteins as keys to the cells receptor |
| how do viruses trick cells into letting them in | by using their surface proteins as keys to the cells receptor |
| how do viruses trick cells into letting them in | by using their surface proteins as keys to the cells receptor |
| how do viruses trick cells into letting them in | by using their surface proteins as keys to the cells receptor |
| how do viruses trick cells into letting them in | by using their surface proteins as keys to the cells receptor |
Created by:
craig1823
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