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level: Module 2

Questions and Answers List

level questions: Module 2

QuestionAnswer
PathogenAn organism that causes disease.
SaprophyteAn organism that feeds on dead matter.
ParasiteAn organism that feeds on a living host.
Aerobic OrganismAn organism that requires oxygen.
Steady StateA state in which members of a population die as quickly as new members are born.
Exponential GrowthPopulations growth that is unhindered because of the abundance of resources for an ever-increasing population.
Logistic GrowthPopulations growth that is controlled by limited resources.
ConjugationA temporary union of two organisms for the purpose of DNA transfer.
PlasmidA 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.
TransformationThe transfer of a DNA segment from a nonfunctional donor cell to that of a functional recipient cell.
TransductionThe process by which infection by a virus results in DNA being transferred from one bacterium to another.
EndosporeThe DNA and other essential parts of a bacterium coated with several hard layers.
StrainsOrganisms from the same species that have markedly different traits.
Anaerobic OrganismAn organism that does not require oxygen.