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| Def: cytoplasmic membrane |
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Definition
| the barrier that separates the inside of the cell from the outside |
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| Inside the cell membrane where various sturctures and chemicals are suspended or dissolved. |
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| In the cytoplasm where the cells' genetic information(DNA) is stored |
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| THe structures upon which new protiens are made in the cell |
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| 6 Characteristics of Living Systems |
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Definition
Metabolism
Reproduction
Differentiation
Communication
Movement
Evolution |
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| protiens capable of greatly accelerating the rate of chemical reactions |
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| How long as life been present on Earth? |
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| Which shoul cells be considered, Chemical Machines or Coding Devices? |
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Definition
| Both. In order to act like a duplication machine, the cell must be able to decode and replicate DNA. Both functions are applicable. |
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| What are the 4 classes of cellular macromolecules? |
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| Protiens, Polysaccrides, Lipids, and nucleic acids |
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| A group of cells derived from successive cell divisions from a single parent cell. |
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| A habitat where different populations of cells interact with eachother |
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| What cells make up the major portion of biomass of Earth? |
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| Where are most prokaryotic cells located on Earth? |
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a plant group that lives in close association with baterica that form structures on the plant roots called nodules.
Nodules concert nitrogen n2 into fixed nitrogen NH3 |
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the forestomach of ruminant animals in which cellulose digestion occurs
Without this microorganism, cattle and sheep could not thrive on grass and hay |
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Definition
| energy stored in living organisms |
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| Which fuel can be made by microorganisms? |
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Definition
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| First person to describe microorganisms |
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| Antoni van Leeuwenhoek(1684) |
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Definition
| First person to see bacteria |
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| Swan Neck Expiriment- showed that spontaneous generation was not accurate and that the microorganisms that made food putrefy were present in the air. Vaccines: anthrax, fowl cholrea, and rabies |
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1) The suspected pathogenic organism should be present in ALL cases of the disease and absent from healthy animals.
2) The suspected organism should be grown in pure culture.
3)Cells from a pure culture of the suspected organism should cuase disease in a healthy animal.
4)The organism should be reisolated and shown to be the same as the original diseased animal. |
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