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prokaryotic viruses
| Question | Answer |
|---|---|
| what are microorganisms? | single celled organisms that are too small to be seen without a microscope. |
| prokaryotic characteristics | no memberane-bound nucleus,single chromosome, cell wall in most species, prokaryotic fission, metabolic diversity |
| prokaryotic fission | a parent cellreplicates its DNA molecule, which is then separated by a new plasm membrane |
| most common and diverse prokaryotic cells include | cyanobacteria, gram-positive bacteria, proteobacteria, spirochetes |
| what is a virus? | noncellular infectious agent that consists of protein wrapped around a nucleic acid core and cannot reproduce itself |
| what are viroids? | they are smaller than viruses they have no protein coating genes |
| the nature of disease? | infection is the invasion of a cell or multicelled body by a pathogen, disease follows when the pathogen multiplies and the metabolic activities of its descendants interfere with body activities |
| what are small proteins called? | prions |
Created by:
jahmaika
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