{"id":209028,"date":"2025-04-28T09:44:16","date_gmt":"2025-04-28T09:44:16","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=209028"},"modified":"2025-04-28T09:44:17","modified_gmt":"2025-04-28T09:44:17","slug":"refer-to-the-table-which-summarizes-the-inputs-and-outputs-of-glycolysis","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/04\/28\/refer-to-the-table-which-summarizes-the-inputs-and-outputs-of-glycolysis\/","title":{"rendered":"Refer to the table, which summarizes the inputs and outputs of glycolysis"},"content":{"rendered":"\n<p>Refer to the table, which summarizes the inputs and outputs of glycolysis. Glycolysis Inputs Outputs Glucose Pyruvate 2 NAD 2 NADH 2 ATP 4 ATP 4 ADP + 4P 2 ADP + 2P Which group represents the net outputs of glycolysis?<\/p>\n\n\n\n<p>Pyruvate, 2 NADH, 4 ATP<br>4 NADH, 2 ATP, 2 ADP, 2 Pi<br>Pyruvate, 2 NADH, 4 ATP, 2 ADP, 2 Pi<br>Pyruvate, 2 NADH, 2 ATP<br>2 NADH, 2 ATP, 2 ADP, 2 P<\/p>\n\n\n\n<p><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-ast-global-color-6-color\"><strong>The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n<p>The correct answer is: <strong>Pyruvate, 2 NADH, 2 ATP<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Explanation:<\/strong><\/p>\n\n\n\n<p>Glycolysis is a metabolic pathway that breaks down one molecule of <strong>glucose<\/strong> (a 6-carbon sugar) into two molecules of <strong>pyruvate<\/strong> (each a 3-carbon molecule). This process occurs in the cytoplasm of the cell and does <strong>not require oxygen<\/strong> (anaerobic).<\/p>\n\n\n\n<p>Now, let\u2019s analyze the <strong>inputs<\/strong> and <strong>outputs<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Inputs<\/strong>:<\/li>\n\n\n\n<li>1 glucose molecule<\/li>\n\n\n\n<li>2 NAD\u207a molecules<\/li>\n\n\n\n<li>2 ATP molecules (to start the process)<\/li>\n\n\n\n<li><strong>Outputs<\/strong>:<\/li>\n\n\n\n<li>2 pyruvate molecules<\/li>\n\n\n\n<li>2 NADH molecules (from the reduction of NAD\u207a)<\/li>\n\n\n\n<li>4 ATP molecules (produced), but <strong>since 2 ATP were used initially, the net gain is 2 ATP<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Why &#8220;Pyruvate, 2 NADH, 2 ATP&#8221; is correct:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pyruvate<\/strong>: Glycolysis converts glucose into two pyruvate molecules.<\/li>\n\n\n\n<li><strong>2 NADH<\/strong>: During glycolysis, two NAD\u207a molecules are reduced (gain electrons) to form two NADH molecules, which carry electrons to the electron transport chain if oxygen is available.<\/li>\n\n\n\n<li><strong>2 ATP<\/strong>: Although 4 ATP are produced, 2 ATP are consumed early in the pathway (investment phase). So, the <strong>net gain<\/strong> is <strong>2 ATP<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Why the other choices are incorrect:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Pyruvate, 2 NADH, 4 ATP<\/strong>: This counts the total ATP made but ignores that 2 ATP were used, so the net ATP is <strong>only 2<\/strong>.<\/li>\n\n\n\n<li><strong>4 NADH, 2 ATP, 2 ADP, 2 Pi<\/strong>: Glycolysis produces only <strong>2 NADH<\/strong>, not 4.<\/li>\n\n\n\n<li><strong>Pyruvate, 2 NADH, 4 ATP, 2 ADP, 2 Pi<\/strong>: Again, counts total ATP without accounting for ATP consumption. Plus, ADP and Pi (phosphate) are not considered net outputs; they are intermediates.<\/li>\n\n\n\n<li><strong>2 NADH, 2 ATP, 2 ADP, 2 P<\/strong>: Includes extra items (ADP, Pi) that are <strong>not true final outputs<\/strong> but are recycled in the cell.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Summary:<\/strong><br>The <strong>net outputs<\/strong> of glycolysis are <strong>2 pyruvate<\/strong>, <strong>2 NADH<\/strong>, and <strong>2 ATP<\/strong>. These products are crucial for the cell: pyruvate can enter the mitochondria for aerobic respiration, NADH carries high-energy electrons, and ATP provides energy for cellular processes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n","protected":false},"excerpt":{"rendered":"<p>Refer to the table, which summarizes the inputs and outputs of glycolysis. Glycolysis Inputs Outputs Glucose Pyruvate 2 NAD 2 NADH 2 ATP 4 ATP 4 ADP + 4P 2 ADP + 2P Which group represents the net outputs of glycolysis? Pyruvate, 2 NADH, 4 ATP4 NADH, 2 ATP, 2 ADP, 2 PiPyruvate, 2 NADH, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-209028","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/209028","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=209028"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/209028\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=209028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=209028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=209028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}