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Cards In This Set
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The barrier that separates the inside of the cell from its environment is called the ______________.
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Cell membrane
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Which of the following are essential characteristics of living systems?
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Evolution
metabolism
differentiation
chemical signaling
all of the above
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The complicated mix of materials surrounded by the cell membrane in bacteria is called ___________.
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Cytoplasm
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Which of the following is a proper designation of this bacterium?
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Escherichia coli
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The __________ includes the living organisms together with the chemical and physical constituents of the environment.
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Ecosytem
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Microorganisms may modify their environment by
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Removing O2.
excreting waste products.
removing nutrients.
all of the above.
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A culture that contains only one type of microorganism is said to be
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A pure culture.
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Members of the plant group _____________ live in close association with special bacteria that form nitrogen-fixing nodules on their roots.
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Legumes
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The use of microorganisms to clean up pollution is called what?
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Bioremediation
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________________ is the discipline that concerns the artificial manipulation of genes and their products
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Genetic engineering
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_______________ is generally considered the to first to see organisms as small as prokaryotes.
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Leeuwenhoek
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The notion of pure culture was largely done under the leadership of __________ in Berlin.
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Koch
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The use of oddly-shaped flasks to study airborne contamination of broth was done by
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Pasteur
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The discovery that certain bacteria could fix atmospheric nitrogen is generally credited to
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Winogradsky
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Organisms that use carbon dioxide as the source of cellular carbon are called
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Autotrophs.
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