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22 Cards in this Set
- Front
- Back
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pathogen |
An organism that causes disease
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saprophyte
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An organism that feeds on dead matter
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parasite
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An organism that feeds on a living host
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aerobic organism
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An organism that requires oxygen
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anaerobic organism
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An organism that does not require oxygen
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steady state
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A state in which members of a population die as quickly as new members are born
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exponential growth
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Population growth that is unhindered because of the abundance of resources for an ever-increasing population
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logistic growth
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Population growth that is controlled by limited resources
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conjugation
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A temporary union of two organisms for the purpose of DNA transfer
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plasmid
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A small, circular section of extra DNA that confers one or more traits to a bacterium and can be reproduced separately from the main bacterial genetic code
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transformation
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The transfer of a DNA segment from a nonfunctional donor cell to that of a functional recipient cell
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transduction
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The process in which infection by a virus results in DNA being transferred from one bacterium to another
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endospore
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The DNA and other essential parts of a bacterium coated with several hard layers
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strains
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Organisms from the same species that have markedly different traits
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plasma membrane
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Negotiates what materials pass into and out of the cell
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flagellum
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Moves the bacterium from place to place
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capsule
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Adheres to surfaces as well as wards off infection-fighting agents
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DNA
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Stores the information needed to make an organism a living thing
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cytoplasm
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Holds the DNA and ribosomes in place
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cell wall
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Keeps the interior of the cell together and holds the cell's shape
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fimbria
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Grasps onto surfaces or another bacterium during conjugation
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ribosome
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Makes proteins
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