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  • Anatomia 169 domande A branch of biology dealing with the structure of organisms.
  • Organismi 49 domande Any living biological entity, such as an animal, plant, fungus, or bacterium.
    • Eukaryota 15 domande One of the three domains of life (the others being BACTERIA and ARCHAEA), also called Eukarya. These are organisms whose cells are enclosed in membranes and possess a nucleus. They comprise almost all multicellular and many unicellular organisms, and are traditionally divided into groups (sometimes called kingdoms) including ANIMALS; PLANTS; FUNGI; and various algae and other taxa that were previously part of the old kingdom Protista.
    • Archaea 0 domande One of the three domains of life (the others being BACTERIA and Eukarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA.
    • Batteri 27 domande One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE
      • Acidobacteria 0 domande A physiologically diverse phylum of acidophilic, gram-negative bacteria found in a wide variety of habitats, but particularly abundant in soils and sediments.
      • Agricultural Inoculants 0 domande Beneficial microorganisms (bacteria or fungi) encapsulated in carrier material and applied to the environment for remediation and enhancement of agricultural productivity.
      • Forme Atipiche Di Batteri 0 domande Microorganisms that have undergone greater changes than normal in morphology, physiology, or cultural characteristics.
      • Batteri Aerobi 0 domande
      • Batteri Anaerobi 0 domande
      • Bacteroidetes 0 domande A phylum of bacteria comprised of three classes: Bacteroides, Flavobacteria, and Sphingobacteria.
      • Agenti Patogeni Presenti Nel Sangue 0 domande Infectious organisms in the BLOOD, of which the predominant medical interest is their contamination of blood-soiled linens, towels, gowns, BANDAGES, other items from individuals in risk categories, NEEDLES and other sharp objects, MEDICAL WASTE and DENTAL WASTE, all of which health workers are exposed to. This concept is differentiated from the clinical conditions of BACTEREMIA; VIREMIA; and FUNGEMIA where the organism is present in the blood of a patient as the result of a natural infectious process.
      • Chlorobi 0 domande A phylum of anoxygenic, phototrophic bacteria including the family Chlorobiaceae. They occur in aquatic sediments, sulfur springs, and hot springs and utilize reduced sulfur compounds instead of oxygen.
      • Cloroflessi 0 domande Phylum of green nonsulfur bacteria including the family Chloroflexaceae, among others.
      • Cyanobacteria 0 domande A phylum of oxygenic photosynthetic bacteria comprised of unicellular to multicellular bacteria possessing CHLOROPHYLL a and carrying out oxygenic PHOTOSYNTHESIS. Cyanobacteria are the only known organisms capable of fixing both CARBON DIOXIDE (in the presence of light) and NITROGEN. Cell morphology can include nitrogen-fixing heterocysts and/or resting cells called akinetes. Formerly called blue-green algae, cyanobacteria were traditionally treated as ALGAE.
      • Batteri Che Producono Endospore 2 domande A group of rods or cocci whose taxonomic affinities are uncertain. They form endospores, thick-walled bodies formed within the vegetative cells of certain bacteria, able to withstand adverse environmental conditions for prolonged periods.
      • Fibrobacteres 0 domande A phylum of gram-negative bacteria closely related to the BACTEROIDETES. Species have been found in the gastrointestinal tracts of animals, especially termites, though indications are that species are more broadly distributed in other environments.
      • Fusobatteri 0 domande A phylum of anaerobic, gram-negative bacteria with a chemoorganotrophic heterotrophic metabolism. They are resident flora of the OROPHARYNX.
      • Batteri Gram-Negativi 12 domande Bacteria which lose crystal violet stain but are stained pink when treated by Gram's method.
      • Batteri Gram-Positivi 12 domande Bacteria which retain the crystal violet stain when treated by Gram's method.
      • Planctomycetales 0 domande A phylum of gram-negative bacteria whose members are found in a variety of water habitats as well as animal tissues.
      • Proteobacteria 0 domande A phylum of bacteria consisting of the purple bacteria and their relatives which form a branch of the eubacterial tree. This group of predominantly gram-negative bacteria is classified based on homology of equivalent nucleotide sequences of 16S ribosomal RNA or by hybridization of ribosomal RNA or DNA with 16S and 23S ribosomal RNA.
        • Proteobacteria Alpha 0 domande A class in the phylum PROTEOBACTERIA comprised mostly of two major phenotypes: purple non-sulfur bacteria and aerobic bacteriochlorophyll-containing bacteria.
        • Proteobacteria Beta 0 domande A class in the phylum PROTEOBACTERIA comprised of chemoheterotrophs and chemoautotrophs which derive nutrients from decomposition of organic material.
        • Proteobacteria Delta 0 domande A group of PROTEOBACTERIA represented by morphologically diverse, anaerobic sulfidogens. Some members of this group are considered bacterial predators, having bacteriolytic properties.
        • Proteobacteria Epsilon 0 domande A group of proteobacteria consisting of chemoorganotrophs usually associated with the DIGESTIVE SYSTEM of humans and animals.
        • Proteobacteria Gamma 0 domande A group of the proteobacteria comprised of facultatively anaerobic and fermentative gram-negative bacteria.
          • Acidithiobacillus 0 domande A genus of gram-negative rod-shaped bacteria in the class GAMMAPROTEOBACTERIA. They are obligately acidophilic and aerobic, using reduced SULFUR COMPOUNDS to support AUTOTROPHIC GROWTH.
          • Aeromonadaceae 0 domande A family of gram-negative facultatively anaerobic bacteria, ubiquitous in fresh and brackish water, and associated with GASTROINTESTINAL DISEASES.
          • Alcanivoraceae 0 domande A family of halophilic bacteria in the order Oceanospirillales. Its principal carbon and energy sources are linear-chain ALKANES and their derivatives.
          • Alteromonadaceae 0 domande A family of marine, gram-negative PROTEOBACTERIA including the genera ALTEROMONAS; Colwellia; Idiomarina; MARINOBACTER; MORITELLA; PSEUDOALTEROMONAS; and SHEWANELLA.
          • Cardiobacteriaceae 0 domande A family of gram-negative, mostly aerobic bacteria, in the order Cardiobacteriales. There are three genera: CARDIOBACTERIUM; DICHELOBACTER; and Suttonella.
          • Chromatiaceae 0 domande A family of phototrophic purple sulfur bacteria that deposit globules of elemental sulfur inside their cells. They are found in diverse aquatic environments.
          • Coxiellaceae 0 domande A family of gram-negative bacteria in the order Legionellales. It includes genera COXIELLA and Rickettsiella.
          • Ectothiorhodospiraceae 0 domande A family in the order Chromatiales, class GAMMAPROTEOBACTERIA. These are haloalkaliphilic, phototrophic bacteria that deposit elemental sulfur outside their cells.
          • Enterobacteriaceae 0 domande A family of gram-negative, facultatively anaerobic, rod-shaped bacteria that do not form endospores. Its organisms are distributed worldwide with some being saprophytes and others being plant and animal parasites. Many species are of considerable economic importance due to their pathogenic effects on agriculture and livestock.
            • Buchnera 0 domande A genus of gram-negative bacteria which are obligately intracellular endosymbionts of APHIDS. The bacteria are found within specialized cells in the aphid body cavity.
            • Calymmatobacterium 0 domande A genus of bacteria causing GRANULOMA INGUINALE and other granulomatous lesions.
            • Cronobacter 0 domande A genus of gram-negative opportunistic foodborne pathogens.
            • Citrobacter 0 domande A genus of gram-negative, rod-shaped enterobacteria that can use citrate as the sole source of carbon.
            • Edwardsiella 0 domande A genus of small, straight gram-negative rods which are facultatively anaerobic, chemoorganotrophic, and usually motile by peritrichous flagella. Members of this genus are usually found in the intestines of cold-blooded animals and in fresh water. They are pathogenic for eels, CATFISHES, and other animals and are rare opportunistic pathogens for humans. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
            • Enterobacter 0 domande Gram-negative gas-producing rods found in feces of humans and other animals, sewage, soil, water, and dairy products.
            • Erwinia 0 domande A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria whose organisms are associated with plants as pathogens, saprophytes, or as constituents of the epiphytic flora.
            • Escherichia 0 domande A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria whose organisms occur in the lower part of the intestine of warm-blooded animals. The species are either nonpathogenic or opportunistic pathogens.
            • Hafnia 0 domande A genus of straight, gram-negative bacterial rods which are facultatively anaerobic and motile by peritrichous flagella. This genus is found in human and animal feces, soil, water, and dairy products. It is an opportunistic pathogen in humans. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
              • Hafnia Alvei 0 domande The type species for the genus HAFNIA. It is distinguished from other biochemically similar bacteria by its lack of acid production on media containing sucrose. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
            • Klebsiella 0 domande A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria whose organisms arrange singly, in pairs, or short chains. This genus is commonly found in the intestinal tract and is an opportunistic pathogen that can give rise to bacteremia, pneumonia, urinary tract and several other types of human infection.
            • Kluyvera 0 domande A genus of gram-negative, facultatively anaerobic bacteria in the family ENTEROBACTERIACEAE. It is found in FOOD; SOIL; and SEWAGE; and is an opportunistic pathogen of humans.
            • Morganella 0 domande A genus of gram-negative, facultatively anaerobic, straight rods which are motile by peritrichous flagella. These organisms are chemoorganotrophic and have both a respiratory and fermentative type of metabolism. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
            • Pantoea 0 domande A genus of gram-negative, facultatively anaerobic, straight rods which are motile by peritrichous flagella. Most strains produce a yellow pigment. This organism is isolated from plant surfaces, seeds, soil, and water, as well as from animals and human wounds, blood, and urine. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
            • Pectobacterium 0 domande A genus of gram-negative bacteria in the family ENTEROBACTERIACEAE consisting of species that profusely produce pectinolytic enzymes in plant pathogenesis.
            • Photorhabdus 0 domande A genus of gram-negative bacteria existing symbiotically with nematodes of the family Heterorhabditidae (see RHABDITOIDEA). These nematodes infect a variety of soil-dwelling insects. Upon entering an insect host, the nematode releases Photorhabdus from its intestinal tract and the bacterium establishes a lethal septicemia in the insect.
            • Plesiomonas 0 domande A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in fish and other aquatic animals and in a variety of mammals, including man. Its organisms probably do not belong to the normal intestinal flora of man and can cause diarrhea.
            • Proteus 0 domande A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in the intestines of humans and a wide variety of animals, as well as in manure, soil, and polluted waters. Its species are pathogenic, causing urinary tract infections and are also considered secondary invaders, causing septic lesions at other sites of the body.
            • Providencia 0 domande Gram-negative rods isolated from human urine and feces.
            • Rahnella 0 domande A genus of gram-negative, facultatively anaerobic, small, rod-shaped bacteria occurring in fresh water.
            • Salmonella 0 domande A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that utilizes citrate as a sole carbon source. It is pathogenic for humans, causing enteric fevers, gastroenteritis, and bacteremia. Food poisoning is the most common clinical manifestation. Organisms within this genus are separated on the basis of antigenic characteristics, sugar fermentation patterns, and bacteriophage susceptibility.
            • Serratia 0 domande A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in the natural environment (soil, water, and plant surfaces) or as an opportunistic human pathogen.
            • Shigella 0 domande A genus of gram-negative, facultatively anaerobic, rod-shaped bacteria that ferments sugar without gas production. Its organisms are intestinal pathogens of man and other primates and cause bacillary dysentery (DYSENTERY, BACILLARY).
            • Wigglesworthia 0 domande A genus of gram-negative, rod-shaped bacteria in the family ENTEROBACTERIACEAE. They exist only as primary endosymbionts of five species of TSETSE FLIES, found in specialized organelles called mycetomes. The bacteria supply crucial B vitamins (VITAMIN B COMPLEX) which the flies require for fertility.
            • Xenorhabdus 0 domande A genus of gram-negative, facultatively anaerobic rod-shaped cells which are motile by peritrichous flagella. Late in the growth cycle, spheroplasts or coccoid bodies occur, resulting from disintegration of the cell wall. The natural habitat is the intestinal lumen of certain nematodes. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
            • Yersinia 0 domande A genus of gram-negative, facultatively anaerobic rod- to coccobacillus-shaped bacteria that occurs in a broad spectrum of habitats.
          • Francisella 0 domande The lone genus of bacteria in the family Francisellaceae, frequently found in natural waters. It can be parasitic in humans, other MAMMALS; BIRDS; and ARTHROPODS.
          • Halomonadaceae 0 domande A family of gram-negative, moderately halophilic bacteria in the order Oceanospirillales. Members of the family have been isolated from temperate and Antarctic saline lakes, solar salt facilities, saline soils, and marine environments.
          • Legionellaceae 0 domande A family of gram-negative, aerobic bacteria that do not form endospores or microcysts.
          • Methylococcaceae 0 domande A family of gram-negative, aerobic bacteria utilizing only one-carbon organic compounds and isolated from in soil and water.
          • Moraxellaceae 0 domande A family of gram-negative, aerobic bacteria in the order Pseudomonadales. Some strains are parasites of the mucosal membranes of animals and humans; others are found in association with food products or in the environment.
          • Oceanospirillaceae 0 domande A family of gram-negative bacteria in the order Oceanospirillales.
          • Pasteurellaceae 0 domande A family of coccoid to rod-shaped nonsporeforming, gram-negative, nonmotile, facultatively anaerobic bacteria that includes the genera ACTINOBACILLUS; HAEMOPHILUS; MANNHEIMIA; and PASTEURELLA.
          • Piscirickettsiaceae 0 domande A family of gram-negative bacteria, in the order Thiotrichales.
          • Pseudomonadaceae 0 domande A family of gram-negative bacteria usually found in soil or water and including many plant pathogens and a few animal pathogens.
          • Succinivibrionaceae 0 domande A family of gram-negative, rod-shaped bacteria isolated from the RUMEN of SHEEP and CATTLE and from human FECES. They are chemoorganotrophic and strictly anaerobic.
          • Thiotrichaceae 0 domande A family of colorless sulfur bacteria in the order Thiotrichales, class GAMMAPROTEOBACTERIA.
          • Vibrionaceae 0 domande A family of gram-negative bacteria whose members predominate in the bacterial flora of PLANKTON; FISHES; and SEAWATER. Some members are important pathogens for humans and animals.
          • Xanthomonadaceae 0 domande A family of gram-negative bacteria, in the order Xanthomonadales, pathogenic to plants.
      • Spirochaetales 0 domande An order of slender, flexuous, helically coiled bacteria, with one or more complete turns in the helix.
      • Batteri Riduttori Di Zolfo 0 domande A group of gram-negative, anaerobic bacteria that is able to oxidize acetate completely to carbon dioxide using elemental sulfur as the electron acceptor.
      • Verrucomicrobia 0 domande A phylum of gram-negative bacteria containing seven class-level groups from a wide variety of environments. Most members are chemoheterotrophs.
    • Virus 1 quesito Minute infectious agents whose genomes are composed of DNA or RNA, but not both. They are characterized by a lack of independent metabolism and the inability to replicate outside living host cells.
    • Organism Forms 1 quesito Specific states or life cycle stages of organisms. These include post-embryonic stages of insects, symbiotic relationships between organisms, and reproductive elements such as spores.
  • Malattie 323 domande Any impairment of normal physiological function affecting all or part of an organism, esp a specific pathological change caused by infection, stress, etc, producing characteristic symptoms; illness or sickness in general.
  • Sostanze chimiche e Farmaci 203 domande Any substance used in or resulting from a reaction involving changes to atoms or molecules, especially one derived artificially for practical use and any synthetic, semisynthetic, or natural chemical substance used in the treatment, prevention, or diagnosis of disease, or for other medical reasons.
  • Tecniche ed apparecchiature analitiche, diagnostiche e terapeutiche 109 domande
  • Psichiatria e Psicologia 14 domande The branches of medicine concerned with the diagnosis and treatment of mental illness and the scientific study of all forms of human and animal behaviour, sometimes concerned with the methods through which behaviour can be modified.
  • Scienze biologiche 31 domande
  • Scienze naturali 17 domande
  • Antropologia, Formazione, Sociologia e fenomeni sociali 3 domande
  • Tecnologia, Industria, Agricoltura 4 domande
  • Discipline umanistiche 1 quesito The study of literature, philosophy, and the arts.
  • Scienza dell'informazione 0 domande The field of knowledge, theory, and technology dealing with the collection of facts and figures, and the processes and methods involved in their manipulation, storage, dissemination, publication, and retrieval. It includes the fields of COMMUNICATION; PUBLISHING; LIBRARY SCIENCE; and informatics.
  • Gruppi di persone 8 domande
  • Assistenza sanitaria 34 domande
  • Caratteristiche della Pubblicazione 4 domande
  • Luoghi geografici 7 domande The study of the natural features of the earth's surface, including topography, climate, soil, vegetation, etc, and man's response to them.
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