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Plasmid Pili Transformation Endospore Conjugation Binary Fission
Hair-like structures on the surface of bacteria Exchange of genetic material through cell-to-cell contact Special, dehydrated cell formed when conditions are unfavorable Picking up and incorporating DNA from dead bacterial cells Chromosome replication, followed by cell division Small pieces of circular DNA Plasmid Pili Transformation Endospore Conjugation Binary Fission
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7. Prokaryotes do have a cell membrane but do not have a
Cell wall Single cell Ribosome Nucleus
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8. The process in which the chromosome of a moneran replicates and the cell divides is called
Binary fission Symbiosis Decomposition Transduction
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9. The bacterial process of exchanging genetic material through cell-to-cell contact is:
Binary fission Transformation Symbiosis Conjugation
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10. Individual cells of monerans can be spheres, spirals, or
Plasmids Rods Flagella Cubes
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11. Whiplike structures used by monerans for movement are called
Pili Spirilla Flagella Sphere
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12. Which of the following is an important tool for classifying eubacteria?
Chemosynthesis stain Methanogen stain Chromatium stain Gram stain
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a. Methanogens b. Extreme halophiles c.Thermophiles
The archaebacteria that produce methane are called ______________________ The archaebacteria that live in extremely hot water are called _____________ The archaebacteria that live in high salt environments are called _____________
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16. Viruses that replicate nucleic acid in the reverse of the standard way (from RNA) are called
Bacteriophages Genetic engineers Retroviruses Prions
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17. Tiny particles of pure RNA that cause diseases in plants are known as
Retroviruses Prions Bacteriophages Viroids
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18. When a host cell is rapidly killed by a virus, what type of viral replication cycle has occurred? Nucleic acid cycle Lysogenic cycle Retrocycle Lytic cycle
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19. Retrovirus contain all of the following structures except
RNA Envelope proteins Reverse transcriptase DNA
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20. Two cycles in which a virus can infect a host cell are the lysogenic cycle and the
Prion cycle Bacteriophage cycle Lytic cycle Prophage cycle
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21. Infecting a person with the weakened form of a virus to prevent disease is called what?
Replication Genetic engineering Vaccination Transference
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22. Viruses that infect and kill bacteria are known as
Site-specific bacteria Nanometers Chromosomal invaders Bacteriophages
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23. One hypothesis about the origin of viruses is that they evolved from
Parasites Cells of host organisms Minerals Fungi
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24. All of the following terms describe viral shapes except
Prophage Polyhedral Helical Binal
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25. The spikes covering the envelopes of some viruses allow them to
Stop protein streams Filter bacteria Attach to cells they infect Burst capsids
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26. Which characteristic of living things do viruses lack?
Protein DNA RNA Independent growth
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27. A virus is a particle that consists of a core of nucleic acid and a
Crystal Poison Bacterium Protein coat
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