classification of organisms part 2 Flashcards
Of what form is the photosynthetic bacterias carbon source?
Inorganic
Of what form is the photosynthetic bacterias electron source?
inorganic
what is the only group that has sphingolipids in their membrane?
bacteroids
what group cannot tolerate oxygen?
bacteroids
most bacteroids are mutualistic, meaning what?
in need of a host
what is the cell wall of gram positive bacteria made of?
peptidoglycans
What are the predominant shapes of gram positives
rods and spheres
How do gram postive and gram negative bacteria differ with regards to structures outside the cell wall?
Positive have no additional cell membrane outside the cell wall, while negative does
Define chlamydia
obligate intracellular parasite that does not have a cell wall based on peptidoglycan, with a second membrane external to the cell wall
What defines mycoplasms?
they have no cell wall, undefined shape, and are obligate intracellular parasite
Define spirochetes
thin corkscrew shape, a pathogen for syphilis and lyme
Define mycobacteria
High G+C gram positive bacteria with an impermeable cell wall made with mycolic acid that functions as a pathogen for TB and leprosy
What makes the lipids different between Archaea and eubacteria (and eukarya)?
the lipids are made with ether bonds instead of ester bonds
What domain has some organisms with a lipid monolayer?
domain archaea
In what group are most extremophiles found?
Archaea
