What happens to the excited electron released from either photosystem? <\/p>\n\n\n\n
options: <\/p>\n\n\n\n
a) It is used to make water. <\/p>\n\n\n\n
b) It crosses the thylakoid membrane to form a gradient <\/p>\n\n\n\n
c) It enters the electron transport chain <\/p>\n\n\n\n
d) It is accepted by a final electron acceptor<\/p>\n\n\n\n
e) It cycles back in the photosystem and stays there.<\/p>\n\n\n\n
The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n The correct answer is c) It enters the electron transport chain.<\/strong><\/p>\n\n\n\n In photosynthesis, both Photosystem I and Photosystem II play critical roles in converting light energy into chemical energy. When light strikes the photosystem complexes, electrons in the chlorophyll pigments are excited to a higher energy state. These high-energy electrons are then transferred through various protein complexes and carriers within the thylakoid membrane.<\/p>\n\n\n\n The excited electron released from Photosystem II is captured by a primary electron acceptor. From here, it enters the electron transport chain, which consists of a series of proteins like plastoquinone, cytochrome b6f complex, and plastocyanin. The energy from the electron moving through these proteins is used to pump protons (H+) from the stroma into the thylakoid lumen, creating a proton gradient across the thylakoid membrane. This proton gradient is essential for ATP synthesis in the next stage of photosynthesis, called photophosphorylation.<\/p>\n\n\n\n Meanwhile, the electron that leaves Photosystem I is passed through its own electron transport chain, ultimately reaching NADP+ to form NADPH. NADPH, along with ATP, is used in the Calvin cycle to synthesize glucose and other carbohydrates from carbon dioxide.<\/p>\n\n\n\n Thus, the electron\u2019s journey through the electron transport chain is pivotal in harnessing energy from light, which is eventually stored in the form of ATP and NADPH to drive the synthesis of organic molecules during photosynthesis.<\/p>\n","protected":false},"excerpt":{"rendered":" What happens to the excited electron released from either photosystem? options: a) It is used to make water. b) It crosses the thylakoid membrane to form a gradient c) It enters the electron transport chain d) It is accepted by a final electron acceptor e) It cycles back in the photosystem and stays there. The […]<\/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-252418","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/252418","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=252418"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/252418\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=252418"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=252418"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=252418"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}