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micro vocab

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Term
Description
acellular   lacking any cell characteristics  
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cultured cells for virus   cells that are grown are infected with viruses  
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suitable cells for virus   viruses are specific to cell type  
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capsid   protein capsule  
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nucleocapsid   combination of protein capsule and nucleic acid  
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lysogeny   bacteriophage's nucleic acid becomes mixed in with the bacteria's own nucleic acid and the mixed genome is what becomes replicated from that point on  
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subsequent host cell   the phage's replicated will lyse and release more of the virus to attach to surrounding bacteria  
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temperate phage   those phage that have lied dormant until they undergo lysogeny  
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reverse transcriptase   makes DNA from RNA  
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retrovirus   virus is a permanent part of RNA  
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neoantigen   virus parts on a cell membrane that the immune system recognizes as foreign  
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neoplasia   growth of malignant cells  
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plankton   refers to all single celled photosynthetic organisms  
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foramanifera   amoebic shells  
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amorphus   no fixed shape  
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Entamoeba histolytica   amoebic dysentary  
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Acanthamoeba   protist that can develop in eyes due to dirty contact lenses  
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Trypanosoma brucci   African sleeping sickness caused by a flagellate  
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Trypanosoma cruzi   Chagas disease caused by a flagellate  
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Giardia lamblia   severe dysentary from fecally contaminated water; caused by a flagellate  
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Trichomonas vaginalis   STD common in females caused by a flagellate  
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Plasmodium falciparum   causes malaria; a sporozoa pathogen  
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Taxoplasma gondii   causes taxoplasmosis, carried in cat feces; a sporozoa pathogen  
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Pneumocystis carnii   opportunistic sporozoa pathogen causing pneumonia  
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Cryptosporidium   chronic diarrhea caused by a sporozoa pathogen  
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red tide   caused by blooms of dinoflagellates  
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eumycota   true fungi  
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Ascomycota   sac fungi  
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Basidiomycota   club fungi  
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Chytridiomycota   chytrids  
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yeast   single celled fungi  
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Saccharomyces cerevisiase   common yeast  
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hyphae   forms mycelium  
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aseptate   long mycelium with no spaces  
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septate   mycelium with no spaces  
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YM shift   yeast to mold shift occuring when mold changes its environment  
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saphophytic   an organism that lives off of dead organisms; most molds are this way  
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Rhizopus stolonifer   common bread mold  
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Rhizopus nigricans   soft black rot of vegetables  
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Neurospora crassa   pink bread mold  
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Claviceps purpurea   causes ergotism; also has medicinal uses  
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Aspergillus niger   causes peach mold  
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Aspergillus flavus   aflatoxin in grain  
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generation time   times it takes for bacteria to double or have exponential growth  
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mean generation time   mean doubling time of bacteria at specific intervals of growth curve  
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osmotolerant   organisms able to withstand low water activity environments  
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osmophilic   organisms preferring low water activity environments  
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psychrophile optimum temperature   -5 to 20 C  
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psyschotrophe   can survive at temps of 0-35 C  
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mesophile   optimum temp 15-45 C  
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thermophile   optimum 40-80 C  
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hyperthermophile   optimum 70-105 C  
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x-ray/gamma ray   destroy bacteris by chemical alterations esp. in DNA  
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UV light   cause thymine bridges in DNA  
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photoreactivation   white light repairs UV light damage to DNA  
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apoenzyme   protein portion of an enzyme  
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cofactor   non-protein portion of an enzyme  
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holoenzyme   enzyme and protein or non-protein portion  
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coenzyme   cofactor that is loosley associated to enzyme  
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catalytic site   active site of enzymes  
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oxidative phosphorylation   the process of generation ATP from the electron transport system  
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TDT   thermal death time; shortest time it takes to kill organisms  
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pasteurization   kills certain pathogens by heat; does not sterilize  
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LTLT   low temperature long time; 63C/30 minutes  
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HTST   high temperature short time; 72C/15sec  
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UHT   ultra high temperature; 140-150C/1-3sec.  
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membrane filters   filters out unwanted organisms; pore size about 0.2micrometers  
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HEPA filters   high effeciancy particulate air; keeps dust and mo's out of air  
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lyophilization   freeze dried  
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phenolics   denature proteins and cause membrane disruptions  
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alcohols   denatures proteins and dissolves lipids  
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iodophor   iodine complexed with an organic carrier  
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hypochlorus acid   chlorine added to water, oxidizes cellular material  
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heavy metals   complax with protein and precipitate them  
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detergents   dentaures proteins and destroys cell membrane  
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aldehyde   disinfection, also toxic and carcinogenic  
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ethylene oxide   penetrates surfaces well to kill bacteris; highly explosive  
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BPL   effective in killing bacteria, however does not penetrate surfaces well  
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phenol coefficient   compares the potency of some anti-microbial to that of phenol; used for screening purposes  
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