{"id":88171,"date":"2025-06-01T07:03:54","date_gmt":"2025-06-01T07:03:54","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88171"},"modified":"2025-06-01T07:03:54","modified_gmt":"2025-06-01T07:03:54","slug":"carbon-and-energy-requirements-of-autotrophic-organisms-are-fulfilled","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/carbon-and-energy-requirements-of-autotrophic-organisms-are-fulfilled\/","title":{"rendered":"Carbon and energy requirements of autotrophic organisms are fulfilled"},"content":{"rendered":"<p>Carbon and energy requirements of autotrophic organisms are fulfilled by:<\/p>\n<p>[amp_mcq option1=&#8221;Photosynthesis&#8221; option2=&#8221;Gluconeogenesis&#8221; option3=&#8221;Glycogenesis&#8221; option4=&#8221;External sources&#8221; correct=&#8221;option1&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC NDA-2 &#8211; 2015<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-nda-2-2015.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-nda-2-2015\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">Autotrophic organisms, such as plants and some bacteria, synthesize their own organic compounds for energy and carbon requirements. The primary process by which most autotrophs achieve this is photosynthesis, using light energy to convert carbon dioxide and water into glucose (a carbohydrate) and oxygen.<\/section>\n<section id=\"pyq-key-points\">Autotrophs obtain their carbon and energy through processes like photosynthesis or chemosynthesis.<\/section>\n<section id=\"pyq-additional-information\">Gluconeogenesis and Glycogenesis are metabolic pathways primarily occurring in heterotrophic organisms (like animals) or for storage\/synthesis within the organism, not the means by which autotrophs *initially* acquire carbon and energy from external inorganic sources. External sources are what heterotrophs consume.<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Carbon and energy requirements of autotrophic organisms are fulfilled by: [amp_mcq option1=&#8221;Photosynthesis&#8221; option2=&#8221;Gluconeogenesis&#8221; option3=&#8221;Glycogenesis&#8221; option4=&#8221;External sources&#8221; correct=&#8221;option1&#8243;] This question was previously asked in UPSC NDA-2 &#8211; 2015 Download PDFAttempt Online Autotrophic organisms, such as plants and some bacteria, synthesize their own organic compounds for energy and carbon requirements. The primary process by which most autotrophs &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Carbon and energy requirements of autotrophic organisms are fulfilled\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/carbon-and-energy-requirements-of-autotrophic-organisms-are-fulfilled\/#more-88171\">Detailed Solution<span class=\"screen-reader-text\">Carbon and energy requirements of autotrophic organisms are fulfilled<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1094],"tags":[1443,1117,1331],"class_list":["post-88171","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1443","tag-biology","tag-photosynthesis","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Carbon and energy requirements of autotrophic organisms are fulfilled<\/title>\n<meta name=\"description\" content=\"Autotrophic organisms, such as plants and some bacteria, synthesize their own organic compounds for energy and carbon requirements. The primary process by which most autotrophs achieve this is photosynthesis, using light energy to convert carbon dioxide and water into glucose (a carbohydrate) and oxygen. Autotrophs obtain their carbon and energy through processes like photosynthesis or chemosynthesis.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/carbon-and-energy-requirements-of-autotrophic-organisms-are-fulfilled\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Carbon and energy requirements of autotrophic organisms are fulfilled\" \/>\n<meta property=\"og:description\" content=\"Autotrophic organisms, such as plants and some bacteria, synthesize their own organic compounds for energy and carbon requirements. The primary process by which most autotrophs achieve this is photosynthesis, using light energy to convert carbon dioxide and water into glucose (a carbohydrate) and oxygen. Autotrophs obtain their carbon and energy through processes like photosynthesis or chemosynthesis.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/carbon-and-energy-requirements-of-autotrophic-organisms-are-fulfilled\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:03:54+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Carbon and energy requirements of autotrophic organisms are fulfilled","description":"Autotrophic organisms, such as plants and some bacteria, synthesize their own organic compounds for energy and carbon requirements. The primary process by which most autotrophs achieve this is photosynthesis, using light energy to convert carbon dioxide and water into glucose (a carbohydrate) and oxygen. Autotrophs obtain their carbon and energy through processes like photosynthesis or chemosynthesis.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/carbon-and-energy-requirements-of-autotrophic-organisms-are-fulfilled\/","og_locale":"en_US","og_type":"article","og_title":"Carbon and energy requirements of autotrophic organisms are fulfilled","og_description":"Autotrophic organisms, such as plants and some bacteria, synthesize their own organic compounds for energy and carbon requirements. The primary process by which most autotrophs achieve this is photosynthesis, using light energy to convert carbon dioxide and water into glucose (a carbohydrate) and oxygen. Autotrophs obtain their carbon and energy through processes like photosynthesis or chemosynthesis.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/carbon-and-energy-requirements-of-autotrophic-organisms-are-fulfilled\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:03:54+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/carbon-and-energy-requirements-of-autotrophic-organisms-are-fulfilled\/","url":"https:\/\/exam.pscnotes.com\/mcq\/carbon-and-energy-requirements-of-autotrophic-organisms-are-fulfilled\/","name":"Carbon and energy requirements of autotrophic organisms are fulfilled","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:03:54+00:00","dateModified":"2025-06-01T07:03:54+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Autotrophic organisms, such as plants and some bacteria, synthesize their own organic compounds for energy and carbon requirements. The primary process by which most autotrophs achieve this is photosynthesis, using light energy to convert carbon dioxide and water into glucose (a carbohydrate) and oxygen. 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