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Apologia Bio mod 2
Question | Answer |
---|---|
Pathogen | An organism that causes disease |
Saprophyte | An organism that feeds on dead matter |
Parasite | An organism that feeds on a living host |
Aerobic organism | An organism that requires oxygen |
Anaerobic organism | An organism that does not require oxygen |
Steady state | A stat in which members of a population die as quickly as new members are born |
Exponential growth | Popultion growth tha is unhindered because of the abundance of resources for an ever-increasing population |
Logistical growth | Population growth that is controlled by limited resources |
Conjugation | A temporary union of two organisms for the purpose of DNA transfer |
Plasmid | A small circular section of extra DNA that confers one or more traits to a bacterium and can be reproduces seperately from the main bacterial genetic code |
Transformation | The transfer of a DNA sdgment from a nonfunctional donor cell to that of a funtional recipient cell |
Transduction | The process in which infection by a virus results in DNA being transferred from one bacterium to another |
Endospore | The DNA and other essentioal parts of a bacteruim coated with several hard layer |
Strains | Organisms from the smae species that have markedly different traits |
Plasma membrane | negotiate what material pass into and out of the cell |
Flagellum | move the bacteria from place to place |
Capsule | adhere to surfaces as well as to ward off infection fighting agents |
DNA | store the information needed to make an organism a living thing |
Cytoplasm | hold the DNA and ribosomes in place |
Ribosomes | make proteins |
Fimbria | grsp onto sufaces or another bacterium during conjugation |
most bacteria | are heterotrophic decomposers |
parasites are | heterotrophic because they feed on something produced by a host. they cannot make their own food. |
Coccus | spherical |
Bacillus | rod-shaped |
Spirillium | helical |