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Steptococcus pneumonia bacteria cause what illness?


the name streptococcus tells you that bacteria are arranged as _______________.

long chains of round cells

bacteria are used in what three things?

farming, medical industry, and food industry

what do antibiotics do to bacteria?

kill them by attacking their cell walls

why do resistance genes persist and spread throughout bacterial populations?

natural selection (survival of the fittest)

How do humans contribute to bacterial resistance?

-stop taking meds too soon (underuse)
-insist of getting antibiotics for viruses (overuse)
-stockpiling and trying to medicate ourselves (misuse)

Some bacteria, when faced with unfavorable environmental conditions, produce structures called _____.


What type of bacteria are found in extreme environments?


Asexual reproduction of bacteria

binary fission

sexual reproduction of bacteria


bacteria have what type of cells?


do bacteria have DNA?

YES; they have circular DNA called plasmids

rod shaped bacteria are called...


sphere shaped bacteria are called...


spiral shaped bacteria are called...


bacteria arranged in pairs are called...


bacteria arranged in clumps are called...


bacteria arranged in chains are called...


bacteria that require oxygen are called ...

obligate aerobes

bacteria that cannot survive in the presence of oxygen are called...

obligate anaerobes

what is nitrogen fixation?

when bacteria "fix" nitrogen into a form that is useable for plants

what are two ways that bacteria do damage to your body?

1. destroy tissue
2. produce toxins

Can you get rid of STD's that are caused by bacteria?

yes; with antibiotics

Bacteria that cause diseases are called _____.


How do some bacteria move around?


what is the difference in gram positive and gram negative bacteria?

gram positive stains purple and gram negative stains pink

bacteria that are anaerobic release energy from food by what process?


Gram staining helps to identify bacteria by staining their _____

cell walls

bacterial cell walls are made up of ___


bacteria living in the digestive tract of animals have what type of symbiotic relationship?


What is nitrogen fixation?

when bacteria convent nitrogen into ammonia and other nitrogen compounds that plants can the use

What is bioremediation?

when bacteria break down pollutants into nontoxic or less toxic compounds

Why do antibiotics not effect our bodies own cells?

because we don't have cell walls

Cyanobacteria (blue-green bacteria)produce _____


Legumes have a mutualistic relationship with bacteria that live in ___

their root nodules

If you are reading this while studying....

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