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26 Cards in this Set
- Front
- Back
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Do fungi possess chlorophyl?
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No
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Are fungi considered eukaryotic?
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Yes
(they have membrane bound organelles) |
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Bacteriophages
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Viruses that attack bacteria
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Bacteria are considered?
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Prokaryotic
(lack a true nucleus and membrane bound organelles) |
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What are the 2 major groups of prokaryotes?
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Archaea and Bacteria
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Methanogens, extreme halophiles, and extreme thermophiles are part of what group?
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Archaea
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Where do extreme halophiles live?
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high concentrations of NaCl
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Methanogens
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prokaryotes that produce methane
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Two main things prokaryotes lack?
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cytoskeleton and membrane-bound organelles
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T/F
Prokaryotes have a cell wall, ribosomes, and a cytoplasm that differs significantly from eukaryotic cells. |
True
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Plasmid
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small, circular, extrachromosomal, that replicate independently of the DNA
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Gram-positive bacteria
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have a thick cell wall composed of peptidoglycan
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Gram-negative bacteria
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have a thin cell wall composed of peptidoglycan sandwiched between layers of periplasm and coated with a layer of lipopolysaccharide and protein
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Cocci
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spherical bacteria
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Bacilli
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rod-shaped bacteria
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Spirilla
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spiral-shaped
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Obligate anaerobes
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don't survive in presence of O2
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Facultative aerobes
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can survive with or without O2
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Obligate aerobes
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must have O2 to survive
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Photoautotrophs
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photosynthetic
(use plasma membrane as the site of photosythesis) |
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Chemoautotrophs
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use energy derived from inorganic molecules like NH3 or H2S to drive nutrient production
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Photoheterotrophs
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can use light to generate energy, but must obtain their Carbon in organic form like glucose
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Chemoheterotrophs
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must consume organic molecules both as an energy source and as a source of carbon
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Prokaryotes reproduce asexually by...?
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binary fission
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Polycistronic
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mRNA has more than one coding region, happens in prokaryotes
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T/F
Centrioles are only found in animal cells. |
T
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