{"id":6339,"date":"2024-02-21T19:29:56","date_gmt":"2024-02-21T19:29:56","guid":{"rendered":"https:\/\/ebsm.pt\/base\/?p=6339"},"modified":"2024-02-21T19:30:00","modified_gmt":"2024-02-21T19:30:00","slug":"celula-unidade-basica-da-vida","status":"publish","type":"post","link":"https:\/\/ebsm.pt\/base\/?p=6339","title":{"rendered":"C\u00e9lula &#8211; Unidade B\u00e1sica da Vida"},"content":{"rendered":"\n<p><strong>C\u00c9LULA &#8211; UNIDADE B\u00c1SICA DA VIDA<\/strong><\/p>\n\n\n\n<p>&nbsp;<strong>As c\u00e9lulas constituem a unidade da Vida<\/strong>. Podem ser extremamente simples como nos seres unicelulares, portadores de uma \u00fanica c\u00e9lula mas igualmente complexas como nos seres pluricelulares, dotados de um conjunto de c\u00e9lulas que diferem na forma, tamanho e fun\u00e7\u00e3o. A reduzida dimens\u00e3o da maioria das c\u00e9lulas constituiu um desafio ao seu estudo.&nbsp; Por\u00e9m, o aperfei\u00e7oamento do microsc\u00f3pio permitiu o estudo da estrutura, composi\u00e7\u00e3o e funcionamento da c\u00e9lula e de todos os seus elementos constituintes.<\/p>\n\n\n\n<p><strong>ORGANIZA\u00c7\u00c3O CELULAR<\/strong><\/p>\n\n\n\n<p>As c\u00e9lulas, apesar da sua grande diversidade, possuem em comum v\u00e1rias estruturas.<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; Assim, \u00e9 poss\u00edvel considerar a exist\u00eancia de dois padr\u00f5es celulares: a <strong>C\u00c9LULA PROCARI\u00d3TICA E A C\u00c9LULA EUCARI\u00d3TICA<\/strong>.<\/p>\n\n\n\n<p>As <strong><u>C\u00c9LULAS PROCARI\u00d3TICAS<\/u><\/strong>, de que s\u00e3o exemplo as bact\u00e9rias, s\u00e3o as c\u00e9lulas mais pequenas, com uma organiza\u00e7\u00e3o mais simples. A maioria das c\u00e9lulas procari\u00f3ticas possui, externamente, uma parede celular que lhes confere prote\u00e7\u00e3o e, em alguns casos, uma c\u00e1psula que a refor\u00e7a. Podem ainda apresentar estruturas associadas \u00e0 fixa\u00e7\u00e3o e locomo\u00e7\u00e3o.<\/p>\n\n\n\n<p>As <strong><u>C\u00c9LULAS EUCARI\u00d3TICAS<\/u><\/strong>, caracterizam-se pela presen\u00e7a de um <strong>n\u00facleo<\/strong>, que&nbsp; cont\u00e9m a quase totalidade do material gen\u00e9tico (DNA). As c\u00e9lulas eucari\u00f3ticas apresentam maiores dimens\u00f5es e uma estrutura mais complexa, caracterizada pela exist\u00eancia de outros organelos para al\u00e9m do n\u00facleo. Existem dois tipos fundamentais de c\u00e9lulas eucari\u00f3ticas: a <strong>c\u00e9lula eucari\u00f3tica animal<\/strong>, presente nos animais e outros organismos mais simples e a <strong>c\u00e9lula eucari\u00f3tica vegetal<\/strong>, existente nas plantas e nas algas.<\/p>\n\n\n\n<p><strong>A C\u00c9LULA \u00e9 assim a unidade da Vida na Terra!<\/strong><\/p>\n\n\n\n<p>Neste contexto, surgiu esta exposi\u00e7\u00e3o <strong>\u201cC\u00e9lula \u2013 Unidade B\u00e1sica da Vida\u201d <\/strong>que estar\u00e1 patente no hall de entrada do edif\u00edcio norte durante a semana das Ci\u00eancias Exatas e da Natureza e pretende estimular o gosto pelas ci\u00eancias da vida e divulgar a toda a comunidade escolar os modelos de <strong>c\u00e9lulas procari\u00f3ticas <\/strong>e <strong>c\u00e9lulas eucari\u00f3ticas<\/strong>, elaborados pelos alunos do <strong>8\u00ba1, 8\u00ba2, 8\u00ba3, 8\u00ba4, 8\u00ba5, 8\u00ba6 e 8\u00ba7<\/strong>, no \u00e2mbito da disciplina de Ci\u00eancias Naturais.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-6-768x1024.png\" alt=\"\" class=\"wp-image-6343\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-6-768x1024.png 768w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-6-225x300.png 225w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-6.png 1021w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-7-768x1024.png\" alt=\"\" class=\"wp-image-6344\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-7-768x1025.png 768w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-7-225x300.png 225w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-7.png 1012w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"664\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-8.png\" alt=\"\" class=\"wp-image-6345\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-8.png 886w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-8-300x225.png 300w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-8-768x576.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"665\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-9.png\" alt=\"\" class=\"wp-image-6346\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-9.png 886w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-9-300x225.png 300w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-9-768x576.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"664\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-10.png\" alt=\"\" class=\"wp-image-6347\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-10.png 886w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-10-300x225.png 300w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-10-768x576.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"665\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-11.png\" alt=\"\" class=\"wp-image-6348\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-11.png 886w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-11-300x225.png 300w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-11-768x576.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"665\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-12.png\" alt=\"\" class=\"wp-image-6349\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-12.png 886w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-12-300x225.png 300w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-12-768x576.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"664\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-13.png\" alt=\"\" class=\"wp-image-6350\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-13.png 886w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-13-300x225.png 300w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-13-768x576.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"665\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-14.png\" alt=\"\" class=\"wp-image-6351\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-14.png 886w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-14-300x225.png 300w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-14-768x576.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"886\" height=\"664\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-15.png\" alt=\"\" class=\"wp-image-6352\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-15.png 886w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-15-300x225.png 300w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-15-768x576.png 768w\" sizes=\"auto, (max-width: 886px) 100vw, 886px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-16-768x1024.png\" alt=\"\" class=\"wp-image-6353\" srcset=\"https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-16-768x1024.png 768w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-16-225x300.png 225w, https:\/\/ebsm.pt\/base\/wp-content\/uploads\/2024\/02\/image-16.png 1047w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>As professoras de Ci\u00eancias Naturais do 8\u00ba ano<\/p>\n\n\n\n<p>Isabel Jesus, Liliana Pestana e Sandra Gomes<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00c9LULA &#8211; UNIDADE B\u00c1SICA DA VIDA &nbsp;As c\u00e9lulas constituem a unidade da Vida. Podem ser extremamente simples como nos seres unicelulares, portadores de uma \u00fanica c\u00e9lula mas igualmente complexas como nos seres pluricelulares, dotados de um conjunto de c\u00e9lulas que diferem na forma, tamanho e fun\u00e7\u00e3o. A reduzida dimens\u00e3o da<\/p>\n","protected":false},"author":1,"featured_media":6342,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[25],"tags":[],"class_list":["post-6339","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-atividades"],"_links":{"self":[{"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=\/wp\/v2\/posts\/6339","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6339"}],"version-history":[{"count":1,"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=\/wp\/v2\/posts\/6339\/revisions"}],"predecessor-version":[{"id":6354,"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=\/wp\/v2\/posts\/6339\/revisions\/6354"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=\/wp\/v2\/media\/6342"}],"wp:attachment":[{"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ebsm.pt\/base\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}