{"id":231632,"date":"2025-06-11T09:07:42","date_gmt":"2025-06-11T09:07:42","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=231632"},"modified":"2025-06-11T09:07:44","modified_gmt":"2025-06-11T09:07:44","slug":"choose-all-that-apply-to-the-parts-of-cellular-respiration-which-occurs-along-the-inner-mitochondrial-membrane-glycolysis-transition-phase-o-known-as-the-preparatory-phase-krebs-cycle-also-known-a","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/06\/11\/choose-all-that-apply-to-the-parts-of-cellular-respiration-which-occurs-along-the-inner-mitochondrial-membrane-glycolysis-transition-phase-o-known-as-the-preparatory-phase-krebs-cycle-also-known-a\/","title":{"rendered":"Choose all that apply to the part(s) of cellular respiration which occurs along the inner mitochondrial membrane Glycolysis Transition phase o known as the preparatory phase) Krebs cycle (also known as the citric acid cycle)"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\"> <\/h1>\n\n\n\n<p> Choose all that apply to the part(s) of cellular respiration which occurs along the inner mitochondrial membrane Glycolysis Transition phase (also known as the preparatory phase) Krebs cycle (also known as the citric acid cycle) Electron transport chain Proton transport chain QUESTION 22 Choose all that apply to the part(s) of cellular respiration which produces ATP by substrate level phosphorylation Glycolysis Transition phase (also known as the preparatory phase) Krebs cycle (also known as the citric acid cycle) Electron transport chain Proton transport chain<\/p>\n\n\n\n<p>Certainly! Here&#8217;s the correct answer followed by a detailed, textbook-style explanation.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>QUESTION 1: Choose all that apply to the part(s) of cellular respiration which occurs along the inner mitochondrial membrane<\/strong><\/h3>\n\n\n\n<p>\u2705 Electron transport chain<br>\u2705 Proton transport chain<\/p>\n\n\n\n<p><strong>Correct Answers<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Electron transport chain<\/li>\n\n\n\n<li>Proton transport chain<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>QUESTION 2: Choose all that apply to the part(s) of cellular respiration which produces ATP by substrate level phosphorylation<\/strong><\/h3>\n\n\n\n<p>\u2705 Glycolysis<br>\u2705 Krebs cycle (also known as the citric acid cycle)<\/p>\n\n\n\n<p><strong>Correct Answers<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Glycolysis<\/li>\n\n\n\n<li>Krebs cycle<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Explanation <\/strong><\/h3>\n\n\n\n<p>Cellular respiration is a multi-step metabolic process that breaks down glucose to produce ATP, the cell&#8217;s main energy currency. It consists of four major stages: <strong>glycolysis<\/strong>, the <strong>transition phase<\/strong>, the <strong>Krebs cycle<\/strong>, and the <strong>electron transport chain (ETC)<\/strong>. Each stage occurs in specific locations within the cell and utilizes distinct mechanisms for ATP production.<\/p>\n\n\n\n<p>The <strong>electron transport chain<\/strong> and the <strong>associated proton transport chain<\/strong> occur <strong>along the inner mitochondrial membrane<\/strong>. These chains are responsible for oxidative phosphorylation, the most ATP-productive step in respiration. Electrons from NADH and FADH\u2082 are passed through protein complexes in the inner membrane. This electron movement powers the active transport of protons (H\u207a) from the mitochondrial matrix to the intermembrane space, creating a proton gradient. The protons flow back into the matrix through ATP synthase, driving the synthesis of ATP. This entire mechanism is collectively referred to as chemiosmosis and occurs exclusively on the <strong>inner mitochondrial membrane<\/strong>.<\/p>\n\n\n\n<p>In contrast, <strong>substrate level phosphorylation<\/strong> is a direct method of ATP synthesis, where a phosphate group is transferred from a phosphorylated intermediate to ADP. This occurs in the <strong>cytoplasm during glycolysis<\/strong> and in the <strong>mitochondrial matrix during the Krebs cycle<\/strong>. In <strong>glycolysis<\/strong>, two ATP molecules are produced this way. Similarly, the <strong>Krebs cycle<\/strong> generates one ATP (or GTP, depending on the cell type) per cycle via substrate-level phosphorylation. The <strong>transition phase<\/strong> does not produce ATP; instead, it generates NADH and acetyl-CoA. The <strong>ETC<\/strong> and <strong>proton transport chain<\/strong> produce ATP by oxidative phosphorylation, not by substrate-level phosphorylation.<\/p>\n\n\n\n<p>Understanding where each stage occurs and how ATP is produced is key to grasping how cells efficiently harvest energy from glucose<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"https:\/\/learnexams.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner4-934.jpeg\" alt=\"\" class=\"wp-image-231633\"\/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Choose all that apply to the part(s) of cellular respiration which occurs along the inner mitochondrial membrane Glycolysis Transition phase (also known as the preparatory phase) Krebs cycle (also known as the citric acid cycle) Electron transport chain Proton transport chain QUESTION 22 Choose all that apply to the part(s) of cellular respiration which produces [&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 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