Bacteria Notes
3 Reasons Bacteria are successful:
1. They can __________ almost _______________________.
2. They can __________ almost _______________________.
3. They _______________________ rapidly.
Bacteria come in 3 basic shapes:
1. ___________________ 2. ____________________ 3.____________________
Gram staining:
Gram positive bacteria: stain __________________, have ____ layers and are
_____________ to kill with antibiotics.
Gram negative bacteria: stain __________________, have ____ layers and are
_____________ to kill with antibiotics.
Prokaryotic vs Eukaryotic Cells:
Prokaryote means “before the __________________” = before the ________________
Traits: _____________ nucleus; DNA ( ___ loop) in _________________________;
only __________________________ are prokaryotes.
Eukaryote means “true __________________” = ___________ nucleus
Traits: _____________ nucleus; DNA in _________________________;
_________ other organisms besides bacteria are eukaryotes.
Vocabulary:
Pathogen – something that causes______________________. Heterotroph eats __________________
Autotrophs don’t ______________ others because they can ___________________ their own food.
Benefits of Bacteria - We _______________ live without bacteria:
1. __________________________ - break down waste and recycle nutrients back to soil
2. ____________________________________ bacteria - take nitrogen from the air, convert it into
____________________________, a form plants can absorb, providing nitrogen to both plants and
animals so they can make _________________________ without which they could not survive.
Other Benefits:
3. Add ___________________________ to foods (yogurt, pickles)
4. Can be used to manufacture the drug _________________________ through
_____________________engineering.