Transcript Document 318310

Name:_____________________________Class:________Date:________
#_____A HO
THEY ARE EVERYWHERE!!!
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_______________
:
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outer covering
that protects the
cell
Cell Membrane
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Controls what
goes in and out of
the cell (also
called
______________
membrane)
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Cytoplasm
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Ribosomes
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________-like material
inside the cell
membrane
Chemical factories
where ___________are
produced
____________
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Genetic material
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Contains instructions
for all of the cell’s
functions
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Flagellum
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Plural Flagella
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Long, whip-like
structure to help cell
______________

May have many, 1, or
none
Most _________have
any & are carried from
place to place by:
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 ______________
 Water currents
 Other objects
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_________(Coccus)
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Spherical
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Bacilli (Bacillus)
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_______-shaped
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Spirilla (Spirochetes)
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___________Shaped
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PROKARYOTES- do not have an organized
__________________
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Most known prokaryotes are
_______________________
Archaea (________known)
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Can move
Get energy
Can reproduce (usually asexually)
Very small and simple
_________________-have an organized nucleus
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US!!!!!!
When bacteria have:
1. Plenty of ________________
2. Correct temperature
3. Suitable conditions
they thrive and ______________frequently.
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Some can reproduce as often as every 20
minutes!!!!!!
Asexual
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Involves only ___________ parent and produces
offspring identical to the parent
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Most bacteria reproduce this way- it is called
_______________FISSION
1. Cell enlarges
2. Cell duplicates _____________
3. Cell and DNA copy start to separate
4. Cell divides into 2 separate cells (________________)
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Sexual
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_________parents combine their
genetic material to produce a
new organism, which differs
from both parents
______________________occurs
 Have to be really special
conditions

Called:
 CONJUGATION
http://www.youtube.com/watch?v=OEdX4MaMFE
http://trc.ucdavis.edu/biosci10v/bis10v/
week7/bacterial_conjugation.mov
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Endospore Formation
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Sometimes conditions are harsh for bacteria to
survive
Form Endospores for survival
 ____________________-small, rounded, thick-walled,
restless cell that forms inside a bacterial cell
 Contains cells genetic material & ___________________
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Bacteria must have:
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A source of food
A way of breaking down the food to release its
energy
Bacteria are classified on how they get their
_____________________
Autotroph (__________________)
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Make their own food:
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Capture and use ____________energy (like plants do)
Use energy from _______________substances in their
environment to make food
Examples: bacteria in pond cause the green cloudy scum in
water, bacteria in hot springs use chemical energy to make
food
1.
2.
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Heterotroph (_________________)
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Consume other organisms or the food other organisms
make
 Example: bacteria in yogurt breaks down the sugars in milk
for food
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______________________
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Break down and feed off of dead organisms
 Saprophytes
 Break down dead leaves in the fall
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Don’t all have a cell ____________
3 types
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_________________lovers
 Found in really hot environments
 Ocean vents, hot springs, geysers
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_________________lovers
 Found in areas with high salt content
 Oceans, The Dead Sea, Great Salt Lake
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_________________lovers
 Found in swamps or animal intestines
 Really stinky!!