Term
| They are singled celled organisms that lack a nucleus |
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Definition
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Term
| True/False::: Prokaryotes are much smaller than most eukaryotic cells |
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Definition
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Term
| Where do eubacteria live? |
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Definition
They live almost everywhere, some live in the soil, whereas others infect large organism.
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Term
| What protects a prokaryotic cell from injury? |
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Definition
| The cell wall protects it. |
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Term
| What are four characteristics used to identify prokaryotes? |
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Definition
1. shape
2. chemical nature of cell wall
3. way they move
4. way they obtain energy |
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Term
| The rod shaped prokaryotes are called? |
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Definition
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Term
| What is the spherical-shaped prokaryotes called? |
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Definition
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Term
| What is the corkscrew shaped prokaryote called? |
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Definition
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Term
| A method of telling two different types of eubacteria apart by using dyes is called? |
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Definition
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Term
| whip like structures used for movement |
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Definition
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Term
| True/False::: Many prokaryotes do not move at all. |
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Definition
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Term
| organism that carries out photosynthesis in a manner similar to plants |
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Definition
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Term
| obtain energy directly from inorganic molecules |
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Definition
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Term
| organism that takes in organic molecules and then breaks them down |
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Definition
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Term
| organism that captures sunlight for energy and also needs organic molecules for nuitrition |
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Definition
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Term
| organisms that require a constant supply of oxygen |
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Definition
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Term
| organisms that do not require oxygen |
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Definition
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Term
| can survue with or without oxygen |
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Definition
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Term
| What occurs in the process of binary fission? |
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Definition
| when a bacterium has grown so that it has nearly doubled in size it replicates its DNA and divides in half producing 2 identical "daughter" cells |
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Term
| Is binary fission sexual or asexual? |
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Definition
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Term
| What occurs during conjuction? |
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Definition
| a hollow bridge forms between 2 bacterial cells |
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Term
| True/False:::: Most prokaryotes reproduce by conjugation |
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Definition
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Term
| formed when a bacterium produces a thick internal wall that encloses its DNA and a portion of its cytoplasm |
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Definition
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Term
| the process of converting nitrogen gas into a form plants can use |
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Definition
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Term
| disease-causing disease agents |
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Definition
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Term
| What are two general ways that bacteria cause diease? and examples of each |
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Definition
1. some damage the tissue of the infected organism directly by breaking them down for food.
EXAMPLE:: tuberculosis
2. others release toxins that harm the body
EXAMPLES:: food poision |
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Term
| compounds that block the growth and reproduction of bacteria |
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Definition
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Term
| In the production of what foods are bacteria used? |
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Definition
| cheese, yogurt, buttermilk, sour cream, pickles, and vinegar |
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Term
| How can bacteria be used to clean up an oil spill? |
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Definition
| one type of bacterium can digest petroleum |
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Term
| What have biotechnology companies begun to realize about bacteria adapted to extreme environments> |
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Definition
| Those bacteria may be a rich source of heatstable enzymes which can be used in medicine food production, and industrial chemistry |
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Term
| way of destroying bacteria by subjecting them either to great heat or to chemical action |
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Definition
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Term
| a chemical solution that kills bacteria is called? |
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Definition
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Term
| Why will food stored at low temperature keep longer? |
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Definition
| bacteria in food will take much longer to multiply |
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Term
| particles of nucleic acid protein and in some cases lipids that can reproduce only by infecting living cells |
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Definition
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Term
| True/False:::: Most viruses are so small that they can be seen only with the aid of powerful electron |
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Definition
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Term
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Definition
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Term
| viruses that infect bacteria |
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Definition
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Term
| Why is the process called a lytic infection? |
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Definition
| host cell is lysed and destroyed |
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Term
| viral DNA that is embedded in the host's DNA |
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Definition
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Term
| What are some human diseases that viruses cause? |
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Definition
| viruses cause polio, measles, AIDS, mumps, infuenza, yellow fever, rabies and the common cold. |
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