Difference between revisions of "Bacteria"
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===Meaning=== | ===Meaning=== | ||
[[File:Bacteria.png|right|300px|thumb|A [[Magnify|magnified]] image of several '''bacteria'''.]] | [[File:Bacteria.png|right|300px|thumb|A [[Magnify|magnified]] image of several '''bacteria'''.]] | ||
| − | Bacteria are [[unicellular]] [[ | + | Bacteria are [[unicellular]] [[micro-organism]]s that have no [[nucleus]], [[mitochondria]] or [[chloroplast]] but do have [[cytoplasm]], a [[cell membrane]] and a [[cell wall]]. |
: Singular [[Noun]]: '''Bacterium''' | : Singular [[Noun]]: '''Bacterium''' | ||
Revision as of 20:22, 4 November 2018
Key Stage 3
Meaning
A magnified image of several bacteria.
Bacteria are unicellular micro-organisms that have no nucleus, mitochondria or chloroplast but do have cytoplasm, a cell membrane and a cell wall.
About Bacteria
- Bacteria can cause disease but some are important to keep us healthy.
- Some bacteria have a tail called a flagellum.
- Bacteria do not have a nucleus.
- The DNA of bacteria is in a loop. There are also smaller loops of DNA called plasmids.
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| A diagram showing the features of a bacterium. |