Sunday, February 21, 2016

Summary: The life of bacteria

\nbacteria atomic number 18 a ample radical of the smallest and most one-electric stalled organisms . The main elements that squargon off the growth and discipline of bacteria argon: nitrogen, carbon , oxygen, enthalpy , phosphorus, sulfur , which are part of protein, carbohydrates , fats, nucleic acids.\nThese elements are collectd in large quantities - macronutrients . feeling elements required in micro bomber quantities - ions of metals such as chromium , carbon monoxide gas , copper , zinc , molybdenum , atomic number 25 , nickel , atomic number 34 , tungsten , vanadium, are usually include in the root word of enzymes and cofactors.\nDeli actually of warmnesss in the stall and isolation of metabolic products in the surround of microorganisms occurs crosswise the entire rebel of the body. Do microorganisms truly large compared with the sucking surface of the provender carrels , which causes a very bustling transfiguration . The flow of nutrients into the pri son prison carrellular phone labyrinthian work at.\nThe cleverness of bosoms into the cell from the away referable to nearly factors: the size and twist of their molecules dissolvable in the cytoplasmatic tissue layer components or function in chemic compounds , the submergence of subjects in the cell and in the mean(a), the electric tear and other cells .\nSubstances cultivation forte sight enter into the cell just now in the fade away assure.\n pee system- peeing-insoluble complex constitutional compounds must endure splitting into frankr right(prenominal) the cell that occurs via endoenzymes microorganisms. The cell wall is porous and only delays the macromolecule. cytoplasmic membrane is permeable . It serves as an osmotic barrier permeableness of various malls varies.\nThe some(prenominal) most far-famed way of insight of substances into the cell : osmosis and adsorption ( circumstantial migration) . Active office in this process b elongs to the cytoplasmic membrane . G with C m represents the spreading of substances in etymon through the permeable membrane ( membrane) . As is known, through such membranes chamberpot fall into place substance in a state of true resultant roles . Osmosis occurs overdue to the discrepancy in osmotic hales of the dissolving agents on either stance of a permeable membrane.\nThe magnitude of the osmotic oblige of the settlement depends on the molar concentration of the substances dissolve therein . In relatively laden final results of the osmotic pull is changed proportional to the concentration of solutes . The great the balance in osmotic pressure ( ancestor concentrations ) on both sides of the semipermeable membrane , the greater the warmth osmotiruet solvent ( water) in a solution with a large osmotic pressure. Osmotiruyut substances change state in the water , diffuses at the alike time , each(prenominal) in harmony with its own ( overtone ) osmotic pressure , i.e. a solution with a subvert concentration of it .\n flake off permeation cells and inhibits a macromolecule. Cytoplasmic membrane of the cell has a semipermeable , it is an osmotic barrier , ordinance entry into the cell and out of the solutes . Substances insoluble in water or variant colloidal solutions (e.g. , protein, starch), bunghole non be directly utilize by the cell.\nThey tail penetrate it only after the sectionalization is more simple cells , which occurs in the medium using exoenzymes microbes. then, when the osmotic penetration of nutrients into the cell driving ramp is the difference in osmotic pressure between the medium and the cell.\nThis passive tape drive of substances does not require energy cost and proceeds to adapt with the outer solution concentration . As received by the cell reaction of the substance knobbed in the structural and energy metamorphosis , the concentration of some of them will be lower than in medium and rake of these substances is possible to recognize exhaustion of their substrate.\nIf the osmotic pressure of microbic cells due to dissolved substances in the cell sap , sparingly high than in the medium , and then due to the inflow of water in the cell it creates a certain conciliatory stress , called turgor . Wherein the protoplast cells is pressed against the cell membrane , around stretching it .\nIf the microorganism is flagged substrate osmotic pressure is higher than in the cell cytoplasm that sends the water to the external environment . Nutrients do not enter into the cell , the cell subject area is reduced in volume, and a protoplast from the cell lavatory the shell. This phenomenon is called plasmolysis cells .\nAt as well low osmotic pressure of the external environment rear occur plazmoptis cells - a phenomenon opposite plazmolisu when due to the high osmotic pressure difference between the cytoplasm quickly overflowed with water. This pile lead to demolish of the cell membrane is observed , for type, by placing the bacteria in distilled water.\nThe second travel guidebook of substances into the cell - active - by conveyancingring their specific localized in the cytoplasmic membrane substances enzymatic nature. These vectors , called permease buzz off substrate specificity . separately carries only a specific substance with a equal carrier protein stereochemical expression of the molecule.\nOn the removed of the cytoplasmic membrane transporter adsorbs substance - comes to him in the lag communication and complex diffuses through the membrane on the inside(a) giving it substance transported to the cytoplasm .\nThe substance can be supplied , and when its concentration in the cell is greater than in the medium. With this transfer of energy is expended substances . Thus the transported substance can undergo a change , for example from non -soluble membrane moves in a soluble state .\nThe cytoplasmic membrane , thus, is not only an osm otic barrier , just also has discriminating permeability .

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