lab1 Flashcards
(31 cards)
- blue-green algae phylum is _______
- Our model organism is ______
- It’s troph type is _____
- it’s cellular type is ________
- It’s habitat is _______
- It obtains energy from ________
- Sessile or motile? Motile how?
- reproduction is ________
- Some adaptations are ________
- Some friends are _________
- Cyanobacteria
- Anabaena
- Autotrophic
- colonial
- freshwater
- sunlight (using photosynthetic pigments which are attached to thylakoids)
- sessile
- asexual by fragmentation
- Secreting a gelatinous sheath to hold cells together
- gloeocapsa, spirulina, oscillatoria, nostoc, fischerella
- Bifidobacterium phylum is _______
- Our model organism is ______
- It’s troph type is _____
- it’s cellular type is ________
- It’s habitat is _______
- It obtains energy from ________
- Sessile or motile? Motile how?
- reproduction is ________
- Some adaptations are ________
- Some friends are _________
- Actinobacteria
- Bifidobacterium lactis
- saprotrophs (heterotroph which uses extacellular digestion)
- unicellular
- human digestive tract
- the environment by breaking down food externally (non-living material)
- sessile
- (Can someone find this out and message me)
- a thick capsule that coats their cell wall and protects them (allowing them to survive in the digestive tract)
- streptococcus, lactobacillus
- Halobacterium phylum is _______
- Our model organism is ______
- It’s troph type is _____
- it’s cellular type is ________
- It’s habitat is _______
- It obtains energy from ________
- Sessile or motile? Motile how?
- reproduction is ________
- Some adaptations are ________
- Some friends are _________
- Euryarchaeota
- Halobacterium
- photoheterotroph (heterotrophic and light capturing)
- unicellular
- extremely saline water
- Uses bacteriorhodpsin to produce ATP from sunlight
- Motile, by flagellum and gas vesicles which allow it to float to the surface where there’s more light
- (Someone look this up for me)
- Pumping salt into the cell, making it isotonic, so water won’t want to leave
- Halococcus, Methanomonas
also they have halohordopsin and bacteriorhodopsin
They’re also red
What defines Prokaryotes
No membrane-bound organelles, such as nuclei chloroplast and mitochondria
When did prokaryotics originate
3.8 biliion years ago
What does the cell membrane do
encloses cytoplasm
What is a nucleoid
single circular chromosome
A cell wall is surrounded by
a mucilaginous capsule (i’m not sure if this is all the time)
What are fimbriae
fine hairlike extensions, they attach to surfaces
what are pili
longer extensions, used to transfer or exchange DNA during conjugation
What is peptidoglycan made of
chain of sugars and amino acids
Two characteristics of gram positive bacteria
thick layer of peptidoglycan, stain purple
pathogenic definition
cause disease to the host
What bacteria are often pathogenic
gram positive
Fungi
eukaryotic organisms which grow in strands or filaments called hyphae
Actinobacteria fun facts
They are Gram positive
most known for producing compounds with antibiotic or antifungal properties
Name for comma shaped bacteria
vibrio
Name for spiral and flexible bacteria
spirochoate
Name for spiral and rigid bacteria
spirillum
bacteria chains held together by
a gelatinous matrix
heterotroph definition
cannot produce all the organic molecules it needs
saprotroph definition
heterotroph which uses extracellular dlgestion to break down non living organic material
Bifidobacterium is probiotic because
it survives in the digestive system and promotes the growth of beneficial bacteria within the intestine
autotroph definition
organisms which can produce their own energy rich organic molecules
