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6 Cards in this Set
- Front
- Back
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How can microorganisms be broadly classified? |
Prokaryotes Eukaryotes |
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Describe prokaryotes |
Organisms without membrane-bound nucleus Transcription/translation coupled Single, circular chromosomal DNA Additional DNA carried in plasmids Bacteria |
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Describe eukaryotes |
DNA carried on chromosomes in a membrane-bound nucleus Transcription and translation are compartmentalised Cytoplasm is rich in membrane-bound organelles Cellular organisms other than bacteria |
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Describe structure of bacteria |
Single-celled prokaryotes with characteristic cellular organisation DNA in long circular form Cell is often surrounded by complex cell wall and often a thick capsule May be motile Reproduce by binary fission Wide range of aerobic and anaerobic metabolic patterns and biochemical variations |
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Describe transposition |
The transfer of DNA sequences from one DNA molecule to another within a cell |
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Colonisation |
Commendable organisms, mutualism Symbiotic and natural living arrangements between two species which may be beneficial to one or both parties and does not cause harm |
