what is conjugation?
bacteria sexually reproducing
what do obligate aerobes need?
obligate aerobes need oxygen
do facultative aerobes need oxygen?
facultative aerobes can live with or without oxygen
what do saprobes and parasites feed on?
saprobes- feed in dead matter
parasites- feed on a host cell
how do obligate anaerobes react to oxygen?
obligate anaerobes are poised by oxygen
what contains a membrane bound nucleus and organelles?
eukaryotes
how are flagella's helpful to bacteria?
flagella's help bacteria to move
do anitibiotics work on viruses?
NO
what do photo autotroph’s and chemoautotrophs feed on?
photo autotroph- use sunlight to make food
chemoautotroph- oxidize inorganic matter (like iron or sulfur) to make food
what does eubacteria have that archeabacteria doesn’t?
eubacteria has peptidoglycan (a cell wall)
What do methanogens produce?
Mathanogens produce marsh (methane) gas
what is it called when bacteria produces asexually?
binary fission
three most common forms of bacteria:
rod-shaped : bacilli
spiral: spirilla or spirochetes
spherical: cocci
what are the three ways antibiotics can be used in an improper way?
overuse, underuse, misuse
what are the small loops of DNA that bacteria have called?
plasmids
what type of bacteria is susceptible to antibiotics
grab-positive and gram-negative
where do extreme halophiles live?
Extreme halophiles live in very salty waters (Dead sea, Great Salt Lake inhabitants)
Compared to Bacteria and Acheabacteria is Eukarya more ancient
yes
are acheabacteria and eubacteria both single celled prokaryotes?
yes
Diplo -
Strepto-
Staph -
Diplo - two joined
Strepto - chain
Staph- cluster
what structure is used to transfer DNA from one bacterium to another
pilus
what color are gram-positive stains?
gram-positive stains purple because it has more peptidoglycan
what are the three main groups of acheabacteria?
Methanogens , halophiles, and thermophiles
where do thermoacidophiles or thermophiles live?
what color are gram-negative stain?
gram-negative stains pink because it had less peptidoglycan