DAT Biological Diversity pt 1 Cheat Sheet Flashcards
The classification of
an organism can be
broken down into
different categories…
taxa
most general at top,
most specific at
bottom
taxonomic rank
overall taxonomic rank
domain->kingdom->phylum->class->order->family->genus->species
- Need O2 to survive
obligate aerobes
Cannot survive in presence of O2
obligate anaerobes
Grows in presence of O2, but can
utilize anaerobic metabolism when O2
is absent
Facultative Anaerobe
Majority of mammalian
microorganisms found inside of
mammals are….
Facultative Anaerobe
(collection of microorganisms like bacteria and fungi in/on our bodies
microbiome
Make up the microbiome
microbes
help synthesize vitamins and enhance metabolism
good bacteria
can lead to infections such as gonorrhea, tuberculosis, leprosy, and pneumonia
bad bacteria
Extended use of antibiotics can result in…
vitamin deficiency due to depletion of the vitamin-metabolizing bacteria
Stain purple
gram posiitve
Stain pink
gram neg
Thick peptidoglycan layer in cell wall
gram posiitve
Thin peptidoglycan layer in cell wall
gram neg
No outer membrane
gram pos
Contains an outer membrane
gram neg
Does not produce endotoxins
gram pos
Produces endotoxins when broken down
gram neg
increase cell wall flexibility in gram positive
Teichoic acids
durable structures that help bacterium survive in extreme environmental conditions
endospores
are endospores produced by some or all of bacteria
some