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26 Cards in this Set

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Do fungi possess chlorophyl?
No
Are fungi considered eukaryotic?
Yes

(they have membrane bound organelles)
Bacteriophages
Viruses that attack bacteria
Bacteria are considered?
Prokaryotic

(lack a true nucleus and membrane bound organelles)
What are the 2 major groups of prokaryotes?
Archaea and Bacteria
Methanogens, extreme halophiles, and extreme thermophiles are part of what group?
Archaea
Where do extreme halophiles live?
high concentrations of NaCl
Methanogens
prokaryotes that produce methane
Two main things prokaryotes lack?
cytoskeleton and membrane-bound organelles
T/F

Prokaryotes have a cell wall, ribosomes, and a cytoplasm that differs significantly from eukaryotic cells.
True
Plasmid
small, circular, extrachromosomal, that replicate independently of the DNA
Gram-positive bacteria
have a thick cell wall composed of peptidoglycan
Gram-negative bacteria
have a thin cell wall composed of peptidoglycan sandwiched between layers of periplasm and coated with a layer of lipopolysaccharide and protein
Cocci
spherical bacteria
Bacilli
rod-shaped bacteria
Spirilla
spiral-shaped
Obligate anaerobes
don't survive in presence of O2
Facultative aerobes
can survive with or without O2
Obligate aerobes
must have O2 to survive
Photoautotrophs
photosynthetic

(use plasma membrane as the site of photosythesis)
Chemoautotrophs
use energy derived from inorganic molecules like NH3 or H2S to drive nutrient production
Photoheterotrophs
can use light to generate energy, but must obtain their Carbon in organic form like glucose
Chemoheterotrophs
must consume organic molecules both as an energy source and as a source of carbon
Prokaryotes reproduce asexually by...?
binary fission
Polycistronic
mRNA has more than one coding region, happens in prokaryotes
T/F

Centrioles are only found in animal cells.
T