Parcourir les catégories

  • Anatomie 93 questions
  • Organismes 37 questions Any living biological entity, such as an animal, plant, fungus, or bacterium.
    • Eukaryota 3 questions
      • Alveolata 0 questions
      • Amoebozoa 0 questions
      • Animaux 0 questions Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain Eukarya.
      • Choanoflagellata 0 questions
      • Cryptophyta 0 questions A division (some say phylum or class) of the ALGAE, characterized by biflagellated cells and found in both freshwater and marine environments. Pigmentation varies but only one CHLOROPLAST is present. Unique structures include a nucleomorph and ejectosomes.
      • Diplomonadida 0 questions An order of protozoa characterized by the presence of one or two karyomastigonts and either two-fold rotational or mirror symmetry.
      • Euglenozoa 0 questions
        • Euglenida 0 questions A group of unicellular flagellates of ancient eukaryotic lineage with unclear taxonomy. Classification differs depending on what characteristics are used. Some authorities consider them to be an order of PROTOZOA. For others, they are classed as ALGAE due to the presence of CHLOROPLASTS in some genera. However, the origin of the chloroplasts is in dispute and they are missing from many of the genera. Euglenida lack a CELL WALL but are covered by a proteinaceous flexible coat, the pellicle, that allows the cell to change shape.
          • Euglena 0 questions An organism considered both a protozoon (Dorland, 27th ed) and an alga (Bold, Introduction to the Algae, 2d ed, p292). Characteristics include a pellicle usually marked by spiral or longitudinal striations. Most are found in stagnant water.
            • Euglena Gracilis 0 questions An organism considered both a protozoon (Dorland, 27th ed) and an alga (Bold, Introduction to the Algae, 2d ed, p292). It is a flagellate organism commonly found in stagnant water.
            • Euglena Longa 0 questions A species of ALGAE in the genus EUGLENA, family Euglenaceae. It is a colorless heterotrophic flagellate.
        • Kinetoplastida 0 questions An order of flagellate protozoa. Characteristics include the presence of one or two flagella arising from a depression in the cell body and a single mitochondrion that extends the length of the body.
      • Champignons 2 questions A kingdom of eukaryotic, heterotrophic organisms that live parasitically as saprobes, including MUSHROOMS; YEASTS; smuts, molds, etc. They reproduce either sexually or asexually, and have life cycles that range from simple to complex. Filamentous fungi, commonly known as molds, refer to those that grow as multicellular colonies.
      • Haptophyta 0 questions
      • Mésomycétozoaires 0 questions A class of parasitic and saprophytic microorganisms whose origins can be traced near the animal-fungal divergence. Members of the class are typically pathogens of FISHES, but there are exceptions. There are two recognized orders: Icthyophonida and Dermocystida.
      • Oxymonadida 0 questions
      • Parabasalidea 0 questions
      • Plantes 1 question Multicellular, eukaryotic life forms of the kingdom Plantae. They are characterized by a mainly photosynthetic mode of nutrition; essentially unlimited growth at localized regions of cell divisions (MERISTEMS); cellulose within cells providing rigidity; the absence of organs of locomotion; absence of nervous and sensory systems; and an alteration of haploid and diploid generations.
      • Retortamonadidae 0 questions
      • Rhizaria 0 questions
      • Stramenopiles 0 questions
    • Archéobactéries 0 questions 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.
    • Bactéries 14 questions Bactéries, gram-positif, formant des endospores. Elles comprennent les genres suivants : BACILLUS ; CLOSTRIDIUM ; MICROMONOSPORA ; SACCHAROPOLYSPORA et STREPTOMYCES.
    • Virus 2 questions Petits agents infectieux aux génomes constitués, soit d'ADN, soit d'ARN (jamais des deux), sans métabolisme propre et dans l'incapacité de se multiplier en dehors des cellules vivantes.
    • Organism Forms 0 questions
  • Maladies 167 questions 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.
  • Produits chimiques et pharmaceutiques 79 questions 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.
  • Techniques et équipements analytiques, diagnostiques et thérapeutiques 36 questions
  • Psychiatrie et psychologie 14 questions 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.
  • Phénomènes et processus 17 questions
  • Disciplines et professions 9 questions
  • Anthropologie, enseignement, sociologie et phénoménes sociaux 5 questions
  • Technologie, industrie et agriculture 1 question
  • Sciences humaines 6 questions
  • Sciences De L'Information 1 question Champ de la connaissance, théorie, et technologie, traitant de la collection de faits et de calculs, ainsi que des processus et des méthodes impliqués dans leur manipulation, stockage, diffusion, publication, et recherche. Il inclut la communication, l'édition, la bibliothéconomie, et l'informatique.
  • Individus 5 questions
  • Santé 69 questions
  • Caractéristiques d'une publication 2 questions
  • Lieux géographiques 9 questions The study of the natural features of the earth's surface, including topography, climate, soil, vegetation, etc, and man's response to them.
Poser une question:
Bienvenue à lookformedical.com, où vous pouvez poser des questions et recevoir des réponses d'autres membres de la communauté.
Limitation de responsabilité: N'évalue pas ni ne garantit l'exactitude des contenus de ce site.
...