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23 Cards in this Set
- Front
- Back
Binary Fission
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When a bacteria has grown to double its size, it replicates its DNA and divides in half into daughter cells. Asexual reproduction.
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Protista
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An organism that is not a plant, animal, or fungus.
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Spore
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A haploid reproductive cell that is capable of growing into a new individual without fusing with another cell.
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Symbiosis
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A relationship where two species live close together.
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Mutualism
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A relationship between two organisms that live close together in which both organisms are benefited in some way.
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Commensalism
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A relationship between two organisms that live close together in which one organism is benefited while the other is unaffected.
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Parasitism
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A relationship between two organisms that live close together in which one organism is harmed and the other is benefited.
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Louis Pasteur
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The scientist who disproved spontaneous generation by showing that broth that was boiled and left in a flask did not spontaneously grow.
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Germ Theory of Disease
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1. The pathogen should always be found in a sick organism and never in a healthy one.
2.The pathogen must be isolated and grown in a lab culture. 3.When the culture pathogen is placed in a new host, it should cause the same disease that infected the original host. 4.The pathogen should be recovered from the second host, and should be identical to the original pathogen. |
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Viruses
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Particles of nucleic acids surrounded by a protein coat, and sometimes lipids form the host cell.
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Capsid
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A protein coat.
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Bacteriophages
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Viruses that infect bacteria.
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Lytic Infection
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When the virus enters a cell, makes copies of itself, causing the cell to burst.
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Lysogenic Infection
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When a virus integrates its DNA into the DNA of the host cell, and the viral genetic information replicates along with the host's cell DNA indefinitely. At some point the virus activates and goes into a lytic cycle.
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Taxonomy
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The discipline of classifying organisms and assigning names.
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Taxon
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Each level of categorization.
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Monera
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The kingdom for bacteria.
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Phylogeny
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The study of evolutionary descent, not just what they look like.
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Cladogram
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Model used to represent the evolutionary history of an organism.
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Domain
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Larger grouping system than kingdom.
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Eukarya
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Includes potist, fungi, plant, and animal kingdoms.
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Bacteria
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Includes the eubacteria kingdom.
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Archaea
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Includes the archaea bacteria kingdom
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