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14 Cards in this Set
- Front
- Back
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what is a virus?
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particles of nucleic acid, protein and lipids
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how do viruses reproduce
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by infecting living cells
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what is a virus usually made of?
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a DNA or RNA core surrounded by a protein coat
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what is a prokaryote
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unicellular organisms lacking a nucleus
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wat is the lytic cycle?
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the cycle under which a virus enters a cell, makes copies of itsself, and causes the cell to burst
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what is the lysogenic cycle?
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cycle in which a host cell copies the virus indefinitely, the virus integrates its DNA into the DNA of hte host cell, and viral genetic information replicates with cell's DNA
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what are cocci, bacilli, and spirilla?
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cocci-spherical prokaryotes, bacilli- rod shaped prokaryotes, and spirilla- corkscrew shaped prokaryotes
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what is symbiosis
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interaction between 2 different organisms, typically to the benefit of them both
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What are heterotrophs and autotrophs?
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heterotrophs: need to obtain food
Autotrophs: make their own food |
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what is a capsid
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a virus's protein coat
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what are HIV and AIDS
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HIV= Human immunodeficiency Virus
AIDS=Acquired immunodeficiency Syndrome |
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what is a pathogen
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disease causing agents
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what is a toxin
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poisons that some bacteria reease
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what is conjugation
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process by which genetic information between 2 bacterial cells and genetic information is shared
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