Bacteria Flashcards
(31 cards)
1) type of cell which lacks a nucleus and other organelles
Prokaryote
The smallest and most common microorganisms
Eubacteria
of the two bacterial kingdoms, this kingdom is more closely related to eukaryotes
Eubacteria
hese are the most ancient organisms and live in harsh environments
Archaebacteria
- bacteria cell walls which contain peptidoglycan (gram positive), stain this colour
Purple
Gram negative cells stain this colour
Pink
Part of the cell responsible for controlling what enters and exits the bacterium
Cell membrane
peptidoglycan is found in this structure in Eubacteria
Cell wall
some bacteria are propelled by this structure
flagellum
10) a random change in the DNA of bacteria
mutation
bacteria that can survive with or without oxygen
facultative anaerobes
bacteria that require a constant supply of oxygen in order to live
obligate aerobes
bacteria that live in the absence of oxygen
obligate anaerobes
bacteria play a major role in the “fixation” of this gas into a form which is usable by plants
nitrogen
15) sphere shaped bacteria are called
coccus
rod shaped bacteria are called
bacillus
spiral shaped bacteria are called
spirilla
18) bacteria that use organic chemicals for their energy source and organic compounds for their carbon source
chemoheterotrophs
19) bacteria that use light for their energy source and use CO2 for their carbon source are called
Photoautotrophs
_______________ compounds are used by chemoautotrophs for a source of energy
inorganic
21) The process of producing energy without the use of oxygen - it is hpw alcohol is produced for various drinks
fermentation
22) enables bacteria to exchange genetic information through the production of a cytoplasmic bridge
conjugation
this small circular piece of DNA is transferred during conjugation
plasmid
24) asexual reproduction of bacteria where the daughter cells produced are not equal in size
binary fission