What's the difference between model and protoplast?

Model


Definition:

  • (n.) A miniature representation of a thing, with the several parts in due proportion; sometimes, a facsimile of the same size.
  • (n.) Something intended to serve, or that may serve, as a pattern of something to be made; a material representation or embodiment of an ideal; sometimes, a drawing; a plan; as, the clay model of a sculpture; the inventor's model of a machine.
  • (n.) Anything which serves, or may serve, as an example for imitation; as, a government formed on the model of the American constitution; a model of eloquence, virtue, or behavior.
  • (n.) That by which a thing is to be measured; standard.
  • (n.) Any copy, or resemblance, more or less exact.
  • (n.) A person who poses as a pattern to an artist.
  • (a.) Suitable to be taken as a model or pattern; as, a model house; a model husband.
  • (v. t.) To plan or form after a pattern; to form in model; to form a model or pattern for; to shape; to mold; to fashion; as, to model a house or a government; to model an edifice according to the plan delineated.
  • (v. i.) To make a copy or a pattern; to design or imitate forms; as, to model in wax.

Example Sentences:

  • (1) These variants may serve as useful gene markers in alcohol research involving animal model studies with inbred strains in mice.
  • (2) Therefore, these findings may extend the use of platelets as neuronal models.
  • (3) Models able to describe the events of cellular growth and division and the dynamics of cell populations are useful for the understanding of functional control mechanisms and for the theoretical support for automated analysis of flow cytometric data and of cell volume distributions.
  • (4) The testing of other models and their failure to describe the kinetic observations are discussed.
  • (5) The extreme quenching of the dioxetane chemiluminescence by both microsomes and phosphatidylcholine, as a model phospholipid, implies that despite the low quantum yield (approx.
  • (6) The results of our microscopic model confirm that the continuum hypothesis used in our previous macroscopic model is reasonable.
  • (7) To examine the central nervous system regulation of duodenal bicarbonate secretion, an animal model was developed that allowed cerebroventricular and intravenous injections as well as collection of duodenal perfusates in awake, freely moving rats.
  • (8) The anticonvulsant properties of the endogenous excitatory amino acid antagonist, kynurenic acid (KYA), were studied in prepubescent and adult rats using the amygdaloid kindling model of epilepsy.
  • (9) Decreased MU stops additions of bone by modeling and increases removal of bone next to marrow by remodeling.
  • (10) Because of the dearth of epidemiological clues as to causation, studies with experimental animal models assume greater importance.
  • (11) The models are applied to estimate the demand for tobacco products in Finland.
  • (12) The effects of in vivo administration of native prostaglandin E2 (PGE) on the cycling status of the granulocyte-monocyte progenitor cell (CFU-GM) were examined in a mouse model.
  • (13) Mutational mosaicism was used as a developmental model to analyze 1,500 sporadic and 179 familial cases of retinoblastoma from the world literature.
  • (14) Time-series analysis and multiple-regression modeling procedures were used to characterize changes in the overall incidence rate over the study period and to describe the contribution of additional measures to the dynamics of the incidence rates.
  • (15) The disassembly of the synthetase complex is consistent with the structural model of a heterotypic multienzyme complex and suggests that the complex formation is due to the specific intermolecular interactions among the synthetases.
  • (16) Brown's model, which goes far further than those from any other senior Labour figure, and the modest new income tax powers for Holyrood devised when he was prime minister, edge the party much closer to the quasi-federal plans championed by the Liberal Democrats.
  • (17) It is concluded that in the mouse model the ability of buspirone to reduce the aversive response to a brightly illuminated area may reflect an anxiolytic action, that the dorsal raphe nucleus may be an important locus of action, and that the effects of buspirone may reflect an interaction at 5-hydroxytryptamine receptors.
  • (18) An experimental autoimmune model of nerve growth factor (NGF) deprivation has been used to assess the role of NGF in the development of various cell types in the nervous system.
  • (19) The data for the eubacterial ribosomes are in full agreement with the model of the 50S protein topography derived from immunological data.
  • (20) We present a mathematical model that is suitable to reconcile this apparent contradiction in the interpretation of the epidemiological data: the observed parallel time series for the spread of AIDS in groups with different risk of infection can be realized by computer simulation, if one assumes that the outbreak of full-blown AIDS only occurs if HIV and a certain infectious coagent (cofactor) CO are present.

Protoplast


Definition:

  • (n.) The thing first formed; that of which there are subsequent copies or reproductions; the original.
  • (n.) A first-formed organized body; the first individual, or pair of individuals, of a species.

Example Sentences:

  • (1) 25% of the incorporated radioactivity in protoplast lysates and approx.
  • (2) We have isolated an auxin-regulated cDNA, parB, from the early stage of cultured tobacco mesophyll protoplasts.
  • (3) Several subcellular fractions were derived from OK-432 and only the cytoplasmic and protoplast membrane fractions showed cytotoxic activity against the OK-432-sensitive tumor cell lines, although the cytotoxicity obtained was greatly less than the whole microorganism OK-432.
  • (4) The pH activity profile, cofactor requirements, and kinetic parameters of the endogenously activated chitin synthase were identical to those of the trypsin-activated enzyme in protoplast membranes.
  • (5) Osmotic gradient across the membrane of nonsonicated liposomes and rose petal protoplasts are shown to induce swelling.
  • (6) Unlike malate oxidation by osmotically shocked protoplasts, endogenous protoplast repiration was resistant to ferricianide 5.10(-4) M).
  • (7) The inhibition was also observed when cells were incubated with mercaptoethanol or when mercaptoethanol and DTT were used to prepare protoplasts.
  • (8) Regeneration of cells from protoplasts was monitored throughout the growth cycle and was most efficient when cells of either S. fradiae or S. griseofuscus were taken from the transition phase between the exponential and stationary growth phases.
  • (9) (2) Protoplast fusion analysis indicates that rosamicin-nonproducing characteristics of MR 217-AF2 and MR 217-AF3 strains induced by the acriflavine treatment is due to chromosomal mutation or rearrangement but not to loss of a plasmid.
  • (10) When electroporated into maize protoplasts from a suspension cell line not synthesizing anthocyanins, reporter genes with Bz2, Bz1, and A1 promoters are expressed only when both R and C1 expression plasmids are co-electroporated.
  • (11) In the presence of a suitable carbon source, whole cells and protoplasts of Saccharomyces cerevisiae synthesized glycerol as a compatible organic solute in response to increased external osmotic pressure.
  • (12) Tobacco protoplasts were transformed with an expression construct containing a translational fusion between mature alpha-amylase from Bacillus licheniformis and the signal peptide of the tobacco PR-S protein.
  • (13) The number of binding sites on bacilli and protoplasts is determined for each phage.
  • (14) In both the experiments there were detected cells in their majority with thinner walls, L-form-like structures, protoplasts and single conglomerates of the cells with thicker walls and anomalous division and the cells at the moment of lysis.
  • (15) Rate determinations were made with both, intact cells and with preparations containing secreted enzymes from protoplasts.
  • (16) The effects of Mg2+ and Ca2+ ions on the efficiency of the plasmid transformation of lysozyme-treated Streptococcus lactis protoplasts were compared.
  • (17) Tnt1 has been isolated after its transposition into the nitrate reductase (NR) structural gene of tobacco, and transposition events have been detected through in vitro selection of spontaneous NR-deficient (NR-) mutant lines in cell cultures derived from tobacco mesophyll protoplasts.
  • (18) The effect of treatment of the protoplasts and cell membranes of C. albicans with polyenic entibiotics on formation of the ribosomal-membrane complex was studied in vitro.
  • (19) On the other hand, R medium without MgCl2 but with penicillin G supported development of L-form type colonies at high rate (13-15%) from the inoculated protoplasts.
  • (20) In comparison, in protoplasts a region upstream of the AC2 open reading frame was shown to have moderate promoter activity.