Steptococcus pneumonia bacteria cause what illness?
where are viruses found?
air, soil, and water
are viruses parasites?
yes; the use a host
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?
poking holes in their cell walls
interfere with protein synthesis
prevent making nucleic acids
mess us metabolic processes
what body system to bacteria attack?
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
-insist of getting antibiotics for viruses
-stockpiling and trying to medicate ourselves
Some bacteria, when faced with unfavorable environmental conditions, produce structures called _____.
What type of bacteria are found in extreme environments?
Asexual reproduction of bacteria
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 ...
bacteria that cannot survive in the presence of oxygen are called...
bacteria that obtain energy from sunlight are _____ autotrophs.
bacteria that obtain energy by breaking down inorganic matter are called _____ autotrophs.
bacteria that obtain energy from breaking down complex organic compounds in the environment are called _____.
bacteria that are heterotrophic and feed on decaying material and organic wastes are called _____.
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?
bacteria that like in extremely salty environments are called _____
bacteria that like in extremely hot environmens are called _____.
bacteria that live in oxygen free environments and produce methane gas are called _____.
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?
Nitrogen is important because all organisms need it to make what three things?