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Gracias a su funcionamiento integrado, el hombre tiene conciencia de su ambiente; esta capacitado para comprender y asignar un significado a lo que contempla y aprender, manipular y abstraer de un modo sumamente eficiente. Además de establecer contacto con el ambiente externo, el sistema nervioso realiza también una función integradora que coordina las actividades de todos los diferentes sistemas del cuerpo"]]]],["element",{"elementId":"38"},["name","Coverage"],["description","The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant"],["elementTextContainer",["elementText",{"elementTextId":"11114"},["text","2015"]]]],["element",{"elementId":"45"},["name","Publisher"],["description","An entity responsible for making the resource available"],["elementTextContainer",["elementText",{"elementTextId":"11115"},["text","Departamento de Programas Audiovisuales  Facultad de Quimica UNAM "]]]]]]],["tagContainer",["tag",{"tagId":"4116"},["name","Neurona"]],["tag",{"tagId":"4117"},["name","sistema nerviso"]],["tag",{"tagId":"4118"},["name","tipos de neuronas."]]]],["item",{"itemId":"2221","public":"1","featured":"1"},["fileContainer",["file",{"fileId":"2143"},["src","https://bvhumanidades.usac.edu.gt/files/original/d27d3916bc1c54e9f769132e01c4717b.pdf"],["authentication","e4bf7ccf85f836a9ba1789d3fa5291bb"]]],["collection",{"collectionId":"5"},["elementSetContainer",["elementSet",{"elementSetId":"1"},["name","Dublin Core"],["description","The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. 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For more information see, http://dublincore.org/documents/dces/."],["elementContainer",["element",{"elementId":"50"},["name","Title"],["description","A name given to the resource"],["elementTextContainer",["elementText",{"elementTextId":"11106"},["text","Peroxisomas, mitocondrias y cloroplastos"]]]],["element",{"elementId":"43"},["name","Identifier"],["description","An unambiguous reference to the resource within a given context"],["elementTextContainer",["elementText",{"elementTextId":"11107"},["text","http://mmegias.webs.uvigo.es/descargas/atlas-celula-06-per-mit-clor.pdf "]]]],["element",{"elementId":"41"},["name","Description"],["description","An account of the resource"],["elementTextContainer",["elementText",{"elementTextId":"11108"},["text","Los cloroplastos, que forman parte de un grupo de orgánulos denominados plastos, se encuentran en las células vegetales y realizan la fotosíntesis, proceso mediante el cual se consigue transformar la energía de la radiación electromagnética de la luz en la energía de enlaces químicos. En este apartado vamos a agrupar a tres orgánulos que no tienen demasiadas cosas en común: peroxisomas, mitocondrias y cloroplastos. Las mitocondrias y los cloroplastos son orgánulos rodeados por una doble unidad de membrana y son las principales centrales energéticas de las células eucariotas."]]]],["element",{"elementId":"38"},["name","Coverage"],["description","The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant"],["elementTextContainer",["elementText",{"elementTextId":"11109"},["text","2015-1-1"]]]],["element",{"elementId":"45"},["name","Publisher"],["description","An entity responsible for making the resource available"],["elementTextContainer",["elementText",{"elementTextId":"11110"},["text","Atlas de Histología Animal y Vegetal "]]]]]]],["tagContainer",["tag",{"tagId":"4057"},["name","cloroplastos"]],["tag",{"tagId":"4115"},["name","función de la mitocondria"]],["tag",{"tagId":"4085"},["name","mitocondria"]]]],["item",{"itemId":"2220","public":"1","featured":"1"},["fileContainer",["file",{"fileId":"2142"},["src","https://bvhumanidades.usac.edu.gt/files/original/1ac27bb9a0185cc2ce6ec615ece75cff.pdf"],["authentication","993c0b7af9ebee688989a8884a044fc5"]]],["collection",{"collectionId":"5"},["elementSetContainer",["elementSet",{"elementSetId":"1"},["name","Dublin Core"],["description","The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. 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Debido a ello, una parte muy sustancial de la gran diversidad de seres vivos que constituyen nuestra biosfera escapó a la observación humana hasta épocas muy recientes: se trata del grupo de seres vivos que hoy denominamos microorganismos.  Los microorganismos constituyen un grupo de seres vivos sumamente heterogéneo cuya única característica común es su reducido tamaño: todos son lo suficientemente pequeños como para pasar inadvertidos al ojo humano, siendo preciso el uso de dispositivos de aumento como el microscopio óptico o, en algunos casos, el microscopio electrónico para poder observarlos. La gran mayoría de los microorganismos son unicelulares, aunque una parte significativa de ellos tienen organización subcelular y unos pocos forman agrupaciones de células de tipo colonial sin llegar a constituir verdaderos organismos pluricelulares."]]]],["element",{"elementId":"38"},["name","Coverage"],["description","The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant"],["elementTextContainer",["elementText",{"elementTextId":"11099"},["text","2013"]]]],["element",{"elementId":"45"},["name","Publisher"],["description","An entity responsible for making the resource available"],["elementTextContainer",["elementText",{"elementTextId":"11100"},["text","Curso de Biología "]]]]]]],["tagContainer",["tag",{"tagId":"4112"},["name","estructura de los virus."]],["tag",{"tagId":"4110"},["name","generación espontánea"]],["tag",{"tagId":"4109"},["name","Microorganismos"]],["tag",{"tagId":"4111"},["name","reinos"]]]],["item",{"itemId":"2218","public":"1","featured":"1"},["fileContainer",["file",{"fileId":"2140"},["src","https://bvhumanidades.usac.edu.gt/files/original/44efb36ae8d58e2b6ca7bb9fcfce1bf8.pdf"],["authentication","b1a96aa634ea7ab0f3d9f50c7eebaffb"]]],["collection",{"collectionId":"5"},["elementSetContainer",["elementSet",{"elementSetId":"1"},["name","Dublin Core"],["description","The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. 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Sin embargo, en los años setenta del siglo pasado, quienes trabajamos y más tarde colaboramos con mi queridísimo amigo Armando Gómez Poyou, no imaginábamos siquiera que fuese la molécula de ATP la que aportase la energía necesaria para que Saccharomyces cerevisiae, la más conocida de las levaduras, capturara y transportara a su interior el potasio esencial para su crecimiento, ¿Cómo lo hace? Nos llegamos a preguntar en aquel entonces.  En este texto, cuya lectura requiere de elementos básicos de bioquímica, se describe la construcción de este conocimiento a partir de una observación hecha por serendipia: que la enzima glutamato deshidrogenasa es más activa en presencia de sodio que de potasio. A partir de este hecho, realizamos una serie de observaciones y experimentos clave, entre los que destacan el estudio del efecto del pH en la acumulación de NADH y en el cambio en los niveles de ATP y ADP dentro de la célula. La acumulación de evidencias, descritas con cierto detalle en el texto, nos llevó a explicar cómo sobrevive S. cerevisiae en un medio ácido y sin oxígeno, y a plantear la existencia en la membrana de una proteína que no sólo rompe al ATP, sino que, utilizando la energía de su hidrólisis, se encarga de transportar Na+ y K+ a través de la membrana de la célula.  Esta proteína, hoy conocida como ATP sintasa (ATPasa), también expulsa protones al exterior de la célula usando la misma fuente de energía, acidificando el medio externo, alcalinizando el interno y generando una diferencia de potencial eléctrico a ambos lados de la membrana. La existencia de este sistema, fue más tarde confirmada también en células de organismos superiores y es hoy explicado en todos los textos de biología y bioquímica celular"]]]],["element",{"elementId":"38"},["name","Coverage"],["description","The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant"],["elementTextContainer",["elementText",{"elementTextId":"11094"},["text","2015-1-1"]]]],["element",{"elementId":"45"},["name","Publisher"],["description","An entity responsible for making the resource available"],["elementTextContainer",["elementText",{"elementTextId":"11095"},["text","Revista Digital universitaria "]]]]]]],["tagContainer",["tag",{"tagId":"4105"},["name","adenosín trifosfato"]],["tag",{"tagId":"4108"},["name","Armando Gómez Poyou"]],["tag",{"tagId":"4055"},["name","ATP"]],["tag",{"tagId":"4107"},["name","levadura"]],["tag",{"tagId":"4106"},["name","saccharomyces cerevisiae"]]]],["item",{"itemId":"2217","public":"1","featured":"1"},["fileContainer",["file",{"fileId":"2139"},["src","https://bvhumanidades.usac.edu.gt/files/original/46f8a2087e099a74145987855416760c.pdf"],["authentication","df79985913e4964345ce0e990ba1d3ac"]]],["collection",{"collectionId":"5"},["elementSetContainer",["elementSet",{"elementSetId":"1"},["name","Dublin Core"],["description","The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. 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