{"id":87987,"date":"2025-06-01T06:59:09","date_gmt":"2025-06-01T06:59:09","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=87987"},"modified":"2025-06-01T06:59:09","modified_gmt":"2025-06-01T06:59:09","slug":"organisms-capable-of-using-co%e2%82%82-as-principal-carbon-source-are-called","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/organisms-capable-of-using-co%e2%82%82-as-principal-carbon-source-are-called\/","title":{"rendered":"Organisms capable of using CO\u2082 as principal carbon source are called :"},"content":{"rendered":"<p>Organisms capable of using CO\u2082 as principal carbon source are called :<\/p>\n<p>[amp_mcq option1=&#8221;Autotrophs&#8221; option2=&#8221;Heterotrophs&#8221; option3=&#8221;Parasites&#8221; option4=&#8221;Decomposers&#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-1 &#8211; 2023<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-nda-1-2023.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-nda-1-2023\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nOrganisms capable of using CO\u2082 as a principal carbon source are called Autotrophs.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nAutotrophs are organisms that can produce their own food using light, water, carbon dioxide, or other chemicals. They are the producers in an ecosystem. They use inorganic sources, like CO\u2082, to synthesize organic compounds. Photosynthesis is the most common form of energy production for autotrophs, using sunlight to convert CO\u2082 and water into glucose. Chemosynthesis is another process used by some autotrophs, utilizing energy from chemical reactions.<br \/>\n<\/section>\n<section id=\"pyq-additional_information\">\nHeterotrophs, on the other hand, obtain energy and carbon by consuming other organisms or organic matter. Parasites are a type of heterotroph that lives on or inside another organism (the host) and benefits at the host&#8217;s expense. Decomposers are heterotrophs that break down dead organic material, returning nutrients to the environment.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Organisms capable of using CO\u2082 as principal carbon source are called : [amp_mcq option1=&#8221;Autotrophs&#8221; option2=&#8221;Heterotrophs&#8221; option3=&#8221;Parasites&#8221; option4=&#8221;Decomposers&#8221; correct=&#8221;option1&#8243;] This question was previously asked in UPSC NDA-1 &#8211; 2023 Download PDFAttempt Online Organisms capable of using CO\u2082 as a principal carbon source are called Autotrophs. Autotrophs are organisms that can produce their own food using light, &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Organisms capable of using CO\u2082 as principal carbon source are called :\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/organisms-capable-of-using-co%e2%82%82-as-principal-carbon-source-are-called\/#more-87987\">Detailed Solution<span class=\"screen-reader-text\">Organisms capable of using CO\u2082 as principal carbon source are called :<\/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":[1093],"tags":[1105,1117,1243],"class_list":["post-87987","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1105","tag-biology","tag-taxonomy","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>Organisms capable of using CO\u2082 as principal carbon source are called :<\/title>\n<meta name=\"description\" content=\"Organisms capable of using CO\u2082 as a principal carbon source are called Autotrophs. Autotrophs are organisms that can produce their own food using light, water, carbon dioxide, or other chemicals. They are the producers in an ecosystem. They use inorganic sources, like CO\u2082, to synthesize organic compounds. Photosynthesis is the most common form of energy production for autotrophs, using sunlight to convert CO\u2082 and water into glucose. Chemosynthesis is another process used by some autotrophs, utilizing energy from chemical reactions.\" \/>\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\/organisms-capable-of-using-co\u2082-as-principal-carbon-source-are-called\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Organisms capable of using CO\u2082 as principal carbon source are called :\" \/>\n<meta property=\"og:description\" content=\"Organisms capable of using CO\u2082 as a principal carbon source are called Autotrophs. Autotrophs are organisms that can produce their own food using light, water, carbon dioxide, or other chemicals. They are the producers in an ecosystem. They use inorganic sources, like CO\u2082, to synthesize organic compounds. Photosynthesis is the most common form of energy production for autotrophs, using sunlight to convert CO\u2082 and water into glucose. Chemosynthesis is another process used by some autotrophs, utilizing energy from chemical reactions.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/organisms-capable-of-using-co\u2082-as-principal-carbon-source-are-called\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T06:59:09+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":"Organisms capable of using CO\u2082 as principal carbon source are called :","description":"Organisms capable of using CO\u2082 as a principal carbon source are called Autotrophs. Autotrophs are organisms that can produce their own food using light, water, carbon dioxide, or other chemicals. They are the producers in an ecosystem. They use inorganic sources, like CO\u2082, to synthesize organic compounds. Photosynthesis is the most common form of energy production for autotrophs, using sunlight to convert CO\u2082 and water into glucose. Chemosynthesis is another process used by some autotrophs, utilizing energy from chemical reactions.","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\/organisms-capable-of-using-co\u2082-as-principal-carbon-source-are-called\/","og_locale":"en_US","og_type":"article","og_title":"Organisms capable of using CO\u2082 as principal carbon source are called :","og_description":"Organisms capable of using CO\u2082 as a principal carbon source are called Autotrophs. Autotrophs are organisms that can produce their own food using light, water, carbon dioxide, or other chemicals. They are the producers in an ecosystem. They use inorganic sources, like CO\u2082, to synthesize organic compounds. Photosynthesis is the most common form of energy production for autotrophs, using sunlight to convert CO\u2082 and water into glucose. Chemosynthesis is another process used by some autotrophs, utilizing energy from chemical reactions.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/organisms-capable-of-using-co\u2082-as-principal-carbon-source-are-called\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T06:59:09+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\/organisms-capable-of-using-co%e2%82%82-as-principal-carbon-source-are-called\/","url":"https:\/\/exam.pscnotes.com\/mcq\/organisms-capable-of-using-co%e2%82%82-as-principal-carbon-source-are-called\/","name":"Organisms capable of using CO\u2082 as principal carbon source are called :","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T06:59:09+00:00","dateModified":"2025-06-01T06:59:09+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Organisms capable of using CO\u2082 as a principal carbon source are called Autotrophs. Autotrophs are organisms that can produce their own food using light, water, carbon dioxide, or other chemicals. They are the producers in an ecosystem. They use inorganic sources, like CO\u2082, to synthesize organic compounds. Photosynthesis is the most common form of energy production for autotrophs, using sunlight to convert CO\u2082 and water into glucose. Chemosynthesis is another process used by some autotrophs, utilizing energy from chemical reactions.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/organisms-capable-of-using-co%e2%82%82-as-principal-carbon-source-are-called\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/organisms-capable-of-using-co%e2%82%82-as-principal-carbon-source-are-called\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/organisms-capable-of-using-co%e2%82%82-as-principal-carbon-source-are-called\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC NDA-1","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-nda-1\/"},{"@type":"ListItem","position":3,"name":"Organisms capable of using CO\u2082 as principal carbon source are called :"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/87987","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=87987"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/87987\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=87987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=87987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=87987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}