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20 Cards in this Set
- Front
- Back
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What is one way to prevent viral infection?
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vaccinations
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What are pathogenic organisms?
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Organisms that cause disease
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What is a prokaryotic organism missing?
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nucleus
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What does a virus live in?
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A host cell
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What does an antibiotic do?
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Kills bacteria
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What is the term for changing harmful chemicals to harmless ones
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bioremediation
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What organism can live where no other organisms live
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archaea
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What are the names of the 2 cycles viruses use to reproduce?
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Lytic and lysogenic cycle
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Can bacteria help the environment
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Yes – they can recycle dead organic matter so other organisms can use it.
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Are bacteria unicellular or multicellular?
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Unicellular (one celled)
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What are the 3 shapes of bacteria we studied?
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Sphere, spiral (spirilla), cocci (rod)
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What is a virus?
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a tiny particle that invades a cell and destroys it
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What do vaccinations help prevent?
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some bacterial disease and some viral diseases
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What is nitrogen fixation?
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When bacteria change nitrogen into a form plants can use
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Describe the lytic cycle
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When viruses enter a living cell and use it to make more viruses
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What is the term for how bacteria divide in two?
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Binary fission
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What do endospores allow to happen in bacteria?
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For genetic material to survive when conditions are bad
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What is the difference between treating a disease and preventing a disease?
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Treating a disease happens when the organism is already infected.
Prevention of disease is trying to make sure the infection does not happen. |
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What are the 4 shapes of viruses we studied?
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Crystal, spacecraft, cylinder, sphere
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Which lives in the most extreme environments, bacteria or archaea?
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Archaea. Bacteria can live in extreme environments, but archaea are the MOST extreme.
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