The flashcards below were created by user
sh3ilamarie
on FreezingBlue Flashcards.
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protisis, fungi, plants, and animals are ______
Eukarya
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cell wall, if present, lack peptidoglycan
Archea
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contains peptidoglycan
Bacteria
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Name the 3 major shapes of bacteria.
- 1. Bacillus (rod shape)
- 2. Coccus (spherical)
- 3. Spiral (twister)
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__________ lacks membrane-enclosed organelles. (prenucleus)
prokaryotic
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___________ have membrane-bound nucleus. (true nucleus)
eukaryotic
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Level of Control (Biosafety Levels)
BSL 1
not known to cause disease (ex. E coli, Anthrax)
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Level of Control (Biosafety Levels)
BSL 2
associated with human disease (ex. Measles, Salmonella; Bloodborne, and can come from human bodily fluids)
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Level of Control (Biosafety Levels)
BSL 3
indigenous/exotic agents associated with human disease and with potential for aerosol transmission (ex. Tuberculosis)
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Level of Control (Biosafety Levels)
BSL 4
life threatening nature (ex. ebola)
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what are some control levels?
- 1. PPE
- 2. engineering (ventilating systems, incubators, etc)
- 3. administrative (immunization)
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Aseptic Technique
prevents contamination from unwanted microorganism.
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claim that living cells can arise from pre-exsisting living cells
Theory of Biogenosis
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_________ claims thats microorganisms might cause disease
Germ Theory Disease
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Cell Theory of Life
all living things are composed of cells.
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__________ cell wall consist of many layer of peptidoglycan and also contains teichoic acids. (semi permeable; Thick walls)
Gram-Positive
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___________ bacteria have lipopolysaccharide-lipoprotein-phospholipid outer membrane surrounding a thin peptidoglycan layer. (selective permeable; Thin walls)
Gram-Negative
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mycoplasma
doe not have a cell wall, but has sterol (fatty acid)
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passive transportation
materials move from area of higher to lower concentration and no energy is expended by the cell
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simple diffusion
molecules and ions move until equilibrium is reached
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facilitated diffusion
substances are transported by transporter protein across membranes from areas of high to low concentrations
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osmosis
movement of water from areas of high to low concentration across a selectively permeable membrane until equilibrium is reached
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