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Bacteria
Bacteria
How are bacteria classified according to modern taxonomy?
 Old System: All bacteria used to be placed in kingdom _________________
 New System: There are two bacterial kingdoms: _________________ and
___________________.
 Archaebacteria live in _______________ environments (Ex:
__________________ and _________________). They can make their own food
by taking in __________________ from the environment and converting them to
energy-rich molecules.
 Eubacteria are the “true bacteria”. They are mostly heterotrophs, but a few (ex:
photosynthetic ____________________) are _________________. Heterotrophic
bacteria can use _________________ (requires oxygen) or _________________
(does not require) respiration.
How are bacteria classified according to modern taxonomy?
 Old System: All bacteria used to be placed in kingdom _________________
 New System: There are two bacterial kingdoms: _________________ and
___________________.
 Archaebacteria live in _______________ environments (Ex:
__________________ and _________________). They can make their own food
by taking in __________________ from the environment and converting them to
energy-rich molecules.
 Eubacteria are the “true bacteria”. They are mostly heterotrophs, but a few (ex:
photosynthetic ____________________) are _________________. Heterotrophic
bacteria can use _________________ (requires oxygen) or _________________
(does not require) respiration.
Basic characteristics
Cell #
Basic characteristics
Cell #
Cell Type
Cell Type
Cell Shape
Cell Shape
Nutrition
Nutrition
Reproduction
(see image to right)
Reproduction
(see image to right)
Label the parts of the bacteria cell pictured below: flagellum, pillus, genetic
material (nucleoid region), ribosome, capsid, cell wall, cell membrane
Label the parts of the bacteria cell pictured below: flagellum, pillus, genetic
material (nucleoid region), ribosome, capsid, cell wall, cell membrane
What are some potential uses for bacteria?
 Bacteria can be used in genetic engineering. For example, the gene for human
___________ can be inserted into the bacterial ___________ (a circular
chromosome). The bacteria will then produce the human insulin protein.
 Bacteria serve as __________________ (decomposers) by breaking down living
and dead organic matter.
What are some potential uses for bacteria?
 Bacteria can be used in genetic engineering. For example, the gene for human
___________ can be inserted into the bacterial ___________ (a circular
chromosome). The bacteria will then produce the human insulin protein.
 Bacteria serve as __________________ (decomposers) by breaking down living
and dead organic matter.