{"id":124,"date":"2012-11-05T11:36:17","date_gmt":"2012-11-05T15:36:17","guid":{"rendered":"https:\/\/sites.owu.edu\/wolverton\/?page_id=124"},"modified":"2016-12-01T08:50:42","modified_gmt":"2016-12-01T13:50:42","slug":"metabolism","status":"publish","type":"page","link":"https:\/\/sites.owu.edu\/wolverton\/teaching\/cell-bio\/metabolism\/","title":{"rendered":"Metabolism"},"content":{"rendered":"<p><!--:en--><\/p>\n<h2 id=\"links\">Links<\/h2>\n<p><a href=\"http:\/\/www.nature.com\/principles\/ebooks\/introduction-to-cell-biology-4570805\/4569836\">Principles Module 22<\/a><\/p>\n<p><a href=\"http:\/\/www.nature.com\/principles\/ebooks\/introduction-to-cell-biology-4570805\/4569840\">Principles Module 23<\/a><\/p>\n<h2 id=\"objectives\">Objectives<\/h2>\n<ul>\n<li>Describe what a metabolic pathway is, provide examples<\/li>\n<li>Discuss the concepts of energy and thermodynamics as they relate to biochemical reactions<\/li>\n<\/ul>\n<h2 id=\"keypoints\">Key points<\/h2>\n<ul>\n<li>Cells transform energy and matter in a series of enzyme-mediated reactions that make up a metabolic pathway\n<ul>\n<li>a pathway is when the product of one reaction acts as the substrate for a subsequent reaction<\/li>\n<li>reactions that break down molecules are catabolic<\/li>\n<li>reactions that synthesize molecules are called anabolic<\/li>\n<\/ul>\n<\/li>\n<li>chemical energy is a form of potential energy represented by the bonds between atoms<\/li>\n<li>laws of thermodynamics govern the process of energy transformation in a cell\n<ul>\n<li>energy is neither created nor destroyed<\/li>\n<li>a reaction only proceeds spontaneously if it results in increased entropy<\/li>\n<\/ul>\n<\/li>\n<li>in biology we talk about energy in terms of the change in net free energy, \u0394G\n<ul>\n<li>reactions that require net input of energy have positive \u0394G, endergonic<\/li>\n<li>reactions that release potential energy have negative \u0394G, exergonic<\/li>\n<li>endergonic and exergonic reactions are coupled<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2 id=\"questionsforpractice\">Questions for Practice<\/h2>\n<ul>\n<li>Define the phrase <em>metabolic pathway<\/em>.<\/li>\n<li>What is the difference between endergonic and exergonic reactions?<\/li>\n<li>What is \u0394G, and what is the significance of its sign (positive vs. negative)?<\/li>\n<li>What is energy? Provide examples of the cellular use of energy.<\/li>\n<\/ul>\n<p><!--:--><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Links Principles Module 22 Principles Module 23 Objectives Describe what a metabolic pathway is, provide examples Discuss the concepts of energy and thermodynamics as they relate to biochemical reactions Key points Cells transform energy and matter in a series of enzyme-mediated reactions that make up a metabolic pathway a pathway is when the product of [&hellip;]<\/p>\n","protected":false},"author":40,"featured_media":0,"parent":447,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-124","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/sites.owu.edu\/wolverton\/wp-json\/wp\/v2\/pages\/124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sites.owu.edu\/wolverton\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.owu.edu\/wolverton\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.owu.edu\/wolverton\/wp-json\/wp\/v2\/users\/40"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.owu.edu\/wolverton\/wp-json\/wp\/v2\/comments?post=124"}],"version-history":[{"count":1,"href":"https:\/\/sites.owu.edu\/wolverton\/wp-json\/wp\/v2\/pages\/124\/revisions"}],"predecessor-version":[{"id":510,"href":"https:\/\/sites.owu.edu\/wolverton\/wp-json\/wp\/v2\/pages\/124\/revisions\/510"}],"up":[{"embeddable":true,"href":"https:\/\/sites.owu.edu\/wolverton\/wp-json\/wp\/v2\/pages\/447"}],"wp:attachment":[{"href":"https:\/\/sites.owu.edu\/wolverton\/wp-json\/wp\/v2\/media?parent=124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}