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- 1. Multiple ChoiceViruses can reproduce only under which of the following conditions?When they are outside a living organismWhen they carry out respirationWhen they grow or moveWhen they are inside a host cell
- 2. Multiple ChoiceWhat do viruses have in common with living cells? They both...store genetic information in DNA and RNAhave chloroplastsuse glucose for cellular respirationhave endoplasmic reticulum
- 3. Multiple ChoiceWhich of the following happens as part of both the lyltic cycle and the lysogenic cycle?New viruses are madeThe host cell diesThe entire virus infects the cellThe virus injects its nucleic acid into the host cell
- 4. Multiple ChoiceThe lytic cycle involves several steps. Which of the following is the final step of the lytic cycle.The host cell burstsThe virus injects its nucleic acidNew viruses begin to be madeThe viral DNA becomes part of the host cell's DNA
- 5. Multiple ChoiceHow do viruses reproduce?They copy their own genetic material inside a protein coat.They kill a cell and reproduce inside itThey invade a living cell and use the cell's functions to replicate their genetic materialThey do not reproduce because they are not technically living things
- 6. Multiple ChoiceWhat is the capsid of a virus?The disease it causesThe receptors to which it bindsIts genetic materialIts protein coat
- 7. Multiple ChoiceWhich of the following occurs after a virus attaches to a host cell in the viral reproduction process?The host cell diesThe virus diesThe virus inserts its genetic information into the host cellcopies of the virus are immediately released from the host
- 8. Multiple ChoiceA tomato plant in a greenhouse was found to be infected with tobacco mosaic virus. Which of the following best describes how the virus reproduced?The virus made its own sporesThe virus produced seeds in the tomatoesThe virus used the host plant's resources and machinery to reproduceThe virus immediately killed the host plant and was free to reproduce
- 9. Multiple ChoiceA virus has a very simple structure. Which of the following is part of the viral structure?OrganellesCell membraneHost cellNucleic acid
- 10. Multiple ChoiceIndividuals with HIV sometimes contract pneumonia infections that are rare in the rest of the population because people with HIV...are unable to fight off these pneumonia-causing organismsare more often exposed to these pneumonia-causing organismsrelease pheromones that attract pneumonia-causing organismsrelease substances that increase the strength of the pneumonia-causing organisms
- 11. Multiple ChoiceViruses have structures that allow them to inject their genetic material directly into the DNA of a host cell. This benefits the virus in that...the virus is able to transform into a host cellmutations are introduced into the virusthe host cell is turned into a virusthe virus uses the host cell to replicate itself
- 12. Multiple ChoiceA variety of respiratory diseases in humans can be caused by adenoviruses. Which of the following describes the structure of an adenovirus?A prokaryotic cell that is propelled by a flagellumA nucleic acid core that is surrounded by a protein coatA set of ribosomes that is held together by microtubulesa single cell that contains a plasma membrane and a circular chromosome
- 13. Multiple ChoiceWhich of the following statements explains why viruses are able to reproduce only inside host cells instead of being able to reproduce on their own?Viruses cannot function at temperatures higher than 98.6 degrees farenheitViruses lack spindle fibers that correctly align chromosomes for divisionViruses are to small to effectively make copies of themselves on their ownViruses lack the cellular machinery needed to make copies of their genetic material
- 14. Multiple ChoiceWhich of the following is the only characteristic shared by living cells and viruses?The presence of carbohydratesThe ability to reproduce on their ownThe presence of nucleic acidA cell membrane
- 15. Multiple ChoiceWhat is the main function of the projections on the surface of a virus?They aid in respirationThey help the virus growThey help the virus invade its hostThey help the virus digest food molecules
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