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THEY ARE EVERYWHERE!!!
Name:_____________________________Class:________Date:________#_____A HO
_______________: outer covering
that protects the cell
Cell Membrane Controls what
goes in and out of the cell (also called______________
membrane)
Cytoplasm ________-like
material inside the cell membrane
Ribosomes Chemical factories
where ___________are produced
____________ Genetic material
Contains instructions for all of the cell’s functions
Flagellum Plural Flagella
Long, whip-like structure to help cell ______________
May have many, 1, or none
Most _________have any & are carried from place to place by: ______________ Water currents Other objects
_________(Coccus) Spherical
Bacilli (Bacillus) _______-shaped
Spirilla (Spirochetes) ___________Shaped
PROKARYOTES- do not have an organized __________________ Most known prokaryotes are
_______________________ Archaea (________known)
Can move Get energy Can reproduce (usually asexually) Very small and simple
_________________-have an organized nucleus US!!!!!!
When bacteria have:1. Plenty of ________________2. Correct temperature3. Suitable conditions
they thrive and ______________frequently.
Some can reproduce as often as every 20 minutes!!!!!!
Asexual Involves only ___________ parent and produces
offspring identical to the parent
Most bacteria reproduce this way- it is called _______________FISSION1. Cell enlarges2. Cell duplicates _____________3. Cell and DNA copy start to separate4. Cell divides into 2 separate cells
(________________)
Sexual _________parents combine
their genetic material to produce a new organism, which differs from both parents
______________________occurs Have to be really special
conditions Called:
CONJUGATIONhttp://www.youtube.com/watch?v=O-EdX4MaMFE
http://trc.ucdavis.edu/biosci10v/bis10v/week7/bacterial_conjugation.mov
Endospore Formation 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 & ___________________
Bacteria must have: A source of food A way of breaking down the food to release its
energy Bacteria are classified on how they get
their _____________________
Autotroph (__________________) Make their own food:
1. Capture and use ____________energy (like plants do)2. Use energy from _______________substances in their
environment to make foodExamples: bacteria in pond cause the green cloudy
scum in water, bacteria in hot springs use chemical energy to make food
Heterotroph (_________________) Consume other organisms or the food other
organisms make Example: bacteria in yogurt breaks down the sugars
in milk for food ______________________
Break down and feed off of dead organisms Saprophytes
Break down dead leaves in the fall
Don’t all have a cell ____________ 3 types
_________________lovers Found in really hot environments
Ocean vents, hot springs, geysers _________________lovers
Found in areas with high salt content Oceans, The Dead Sea, Great Salt Lake
_________________lovers Found in swamps or animal intestines
Really stinky!!