{"id":184720,"date":"2025-01-21T10:35:18","date_gmt":"2025-01-21T10:35:18","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=184720"},"modified":"2025-01-21T10:37:49","modified_gmt":"2025-01-21T10:37:49","slug":"select-all-the-components-of-the-photosynthetic-electron-transport-chain","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/01\/21\/select-all-the-components-of-the-photosynthetic-electron-transport-chain\/","title":{"rendered":"Select all the components of the photosynthetic electron transport chain"},"content":{"rendered":"\n<p>Select all the components of the photosynthetic electron transport chain.<\/p>\n\n\n\n<p>Multiple select question.<\/p>\n\n\n\n<p>photosystem I<\/p>\n\n\n\n<p>proton pump protein<\/p>\n\n\n\n<p>rubisco<\/p>\n\n\n\n<p>ribulose bisphosphate (RuBP)<\/p>\n\n\n\n<p>enzyme that produces NADPH<\/p>\n\n\n\n<p>photosystem II<\/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 components of the photosynthetic electron transport chain are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Photosystem I (PSI)<\/strong><\/li>\n\n\n\n<li><strong>Photosystem II (PSII)<\/strong><\/li>\n\n\n\n<li><strong>Proton pump protein<\/strong><\/li>\n\n\n\n<li><strong>Enzyme that produces NADPH<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Explanation:<\/h3>\n\n\n\n<p>Photosynthesis is the process by which plants, algae, and certain bacteria convert light energy into chemical energy. The electron transport chain (ETC) is a crucial part of the light-dependent reactions of photosynthesis, which occur in the thylakoid membranes of chloroplasts. Below is an explanation of the correct components:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Photosystem II (PSII):<\/strong><br>PSII is the starting point of the photosynthetic electron transport chain. It absorbs light energy, which excites electrons to a higher energy level. These high-energy electrons are passed to the electron transport chain, while water molecules are split (photolysis) to replace the lost electrons, releasing oxygen as a byproduct.<\/li>\n\n\n\n<li><strong>Proton Pump Protein (Cytochrome b6f Complex):<\/strong><br>This protein complex acts as a proton pump. As electrons move through the ETC, the energy released is used to pump protons (H\u207a ions) from the stroma into the thylakoid lumen, creating a proton gradient. This gradient drives ATP synthesis.<\/li>\n\n\n\n<li><strong>Photosystem I (PSI):<\/strong><br>After passing through the cytochrome b6f complex, electrons reach PSI. PSI absorbs additional light energy to re-energize the electrons, which are then passed to the enzyme ferredoxin-NADP\u207a reductase (FNR).<\/li>\n\n\n\n<li><strong>Enzyme that Produces NADPH (Ferredoxin-NADP\u207a Reductase):<\/strong><br>FNR uses the high-energy electrons from PSI to reduce NADP\u207a into NADPH. NADPH is an essential electron carrier used in the Calvin cycle for carbon fixation.<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Why Not Rubisco or RuBP?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Rubisco<\/strong> and <strong>Ribulose Bisphosphate (RuBP)<\/strong> are involved in the Calvin cycle, which is the light-independent phase of photosynthesis. They play no role in the electron transport chain, as their function is focused on carbon fixation and sugar production rather than light-dependent reactions.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Select all the components of the photosynthetic electron transport chain. Multiple select question. photosystem I proton pump protein rubisco ribulose bisphosphate (RuBP) enzyme that produces NADPH photosystem II The Correct Answer and Explanation is : The correct components of the photosynthetic electron transport chain are: Explanation: Photosynthesis is the process by which plants, algae, and [&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-184720","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/184720","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=184720"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/184720\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=184720"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=184720"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=184720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}