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Bacteria/ Virus test
on bio exam
| Question | Answer |
|---|---|
| what is the first picture of | bacteria |
| which cell shape is a coccus in # 3 | C |
| A beneficial symbiotic relationship occurs between humans and | E.coli in your intestines |
| Bacteria are sometimes called nature's recyclers because they | break down dead matter to produce nutrients |
| Humans use bacteria to | clean up small oil spills , synthesize drugs, and are used to make foods like yogurt etc. |
| the process in which bacteria take nitrogen from the air and convert it to a form plants can use is | nitrogen fixation |
| many bacteria will increase in numbers by replicating their DNA and then splitting into two identical daughter cells. this is a type | of asexual reproduction called binary fission |
| bacteria that cause disease are called | pathogens |
| what disease is not caused by a bacterium | AIDS |
| Viral diseases can be prevented with ( ) and treated with ( ) | prevented with vaccines but not treated with antibiotics |
| Viruses cause disease by | disrupting the body's normal equilibrium |
| what is the structure above # 23 | virus |
| which letter represents the DNA (or RNA) in # 24 | letter C |
| what is structure A composed of in # 25 | proteins |
| Retroviruses are a class of viruses that have ( blank ) as their genetic material | RNA |
| A structure that forms when a bacterium produces a thick internal wall that encloses its DNA and part of its cytoplasm is called an | endospore |
Created by:
aewells15
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