{"id":147771,"date":"2022-03-20T05:07:38","date_gmt":"2022-03-19T23:37:38","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/cell-envelope-classification-components-purpose-and-faq\/"},"modified":"2022-04-14T18:54:53","modified_gmt":"2022-04-14T13:24:53","slug":"cell-envelope-classification-components-purpose-and-faq","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/biology\/cell-envelope\/","title":{"rendered":"Cell Envelope &#8211; Classification, Components, Purpose and FAQ"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/cell-envelope\/#Classification_of_Cell_Envelope\" title=\"Classification of Cell Envelope\">Classification of Cell Envelope<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/cell-envelope\/#Mycobacteria\" title=\"Mycobacteria\">Mycobacteria<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/cell-envelope\/#Bacteria_without_a_Cell_Wall_composed_of_Peptidoglycans\" title=\"Bacteria without a Cell Wall composed of Peptidoglycans\">Bacteria without a Cell Wall composed of Peptidoglycans<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/cell-envelope\/#Components_of_Cell_Envelope\" title=\"Components of Cell Envelope\">Components of Cell Envelope<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/biology\/cell-envelope\/#Purpose_of_Cell_Envelope\" title=\"Purpose of Cell Envelope\">Purpose of Cell Envelope<\/a><\/li><\/ul><\/nav><\/div>\n<p><span style=\"font-size: 18pt;\"><strong>Cell Envelope:<\/strong><\/span><\/p>\n<p>Cell envelopes are important for cells because they protect the cell&#8217;s contents and structure. The cell envelope is made up of the cell membrane and the cell wall. The cell membrane is a thin, flexible layer of lipid that surrounds the cell and its contents. The cell wall is a thick, rigid layer of polysaccharides that surrounds the cell membrane and provides protection. The cell envelope helps to maintain the cell&#8217;s shape and protects the cell from environmental stress.<\/p>\n<p><img loading=\"lazy\" class=\"aligncenter wp-image-147770 size-full\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/cell-envelope-classification-components-purpose-and-faq.jpg\" alt=\"\" width=\"606\" height=\"428\" srcset=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/cell-envelope-classification-components-purpose-and-faq.jpg?v=1647733054 606w, https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2022\/03\/cell-envelope-classification-components-purpose-and-faq-300x212.jpg?v=1647733054 300w\" sizes=\"(max-width: 606px) 100vw, 606px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Classification_of_Cell_Envelope\"><\/span>Classification of Cell Envelope<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>There are three types of cell envelope: plasma membrane, cell wall, and capsule.<\/p>\n<p>Plasma membrane is a thin, flexible sheet of protein and lipid that surrounds the cell. It is responsible for maintaining the cell&#8217;s internal environment and for exchanging substances with the environment.<\/p>\n<p>Cell wall is a tough, structural layer that surrounds the plasma membrane and provides support and protection for the cell. It is made of cellulose, a tough carbohydrate, and is found in plant cells and some bacteria.<\/p>\n<p>Capsule is a thick, protective layer that surrounds some cells, such as bacteria. It is made of a variety of substances, including polysaccharides, proteins, and DNA.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mycobacteria\"><\/span>Mycobacteria<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Mycobacteria are a group of bacteria that can cause serious infections in people. They are usually spread through the air, and can cause lung infection, skin infection, and other serious problems. Mycobacteria are treated with antibiotics, and often require long-term treatment.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Bacteria_without_a_Cell_Wall_composed_of_Peptidoglycans\"><\/span>Bacteria without a Cell Wall composed of Peptidoglycans<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Bacteria without a cell wall composed of peptidoglycans cannot be stained with the traditional Gram stain because they lack the thick peptidoglycan layer that is characteristic of Gram-positive bacteria. These bacteria are usually classified as Gram-negative because they have a thin layer of peptidoglycan and a second membrane outside of the cell wall.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Components_of_Cell_Envelope\"><\/span>Components of Cell Envelope<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The cell envelope is a membranous structure that surrounds the cytoplasm of a prokaryotic or eukaryotic cell. It is composed of the cell membrane and the cell wall. The cell membrane is a lipid bilayer that surrounds the cytoplasm and regulates the exchange of molecules between the cell and its environment. The cell wall is a tough, non-permeable structure that surrounds the cell membrane and provides protection from the environment.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Purpose_of_Cell_Envelope\"><\/span>Purpose of Cell Envelope<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The cell envelope is the outermost layer of a bacterial cell. It is composed of a lipid bilayer and a variety of proteins. The purpose of the cell envelope is to protect the cell from its environment and to maintain the cell&#8217;s structure. The lipid bilayer is a barrier that prevents the cell from losing water and prevents harmful substances from entering the cell. The proteins in the cell envelope help to maintain the cell&#8217;s shape and to bind the cell to its surroundings.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cell Envelope: Cell envelopes are important for cells because they protect the cell&#8217;s contents and structure. The cell envelope is [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Cell Envelope - Classification, Components, Purpose and FAQ","_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"Learn Cell Envelope topic in Biology in details explained by subject experts on infinitylearn.com. 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