{"id":89920,"date":"2025-06-01T10:17:15","date_gmt":"2025-06-01T10:17:15","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=89920"},"modified":"2025-06-01T10:17:15","modified_gmt":"2025-06-01T10:17:15","slug":"hemocyanin-is-an-oxygen-transport-metalloprotein-present-in-some-inver","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/hemocyanin-is-an-oxygen-transport-metalloprotein-present-in-some-inver\/","title":{"rendered":"Hemocyanin is an oxygen-transport metalloprotein present in some inver"},"content":{"rendered":"<p>Hemocyanin is an oxygen-transport metalloprotein present in some invertebrate animals. This protein contains :<\/p>\n<p>[amp_mcq option1=&#8221;one copper atom&#8221; option2=&#8221;two copper atoms&#8221; option3=&#8221;one iron atom&#8221; option4=&#8221;one magnesium atom&#8221; correct=&#8221;option2&#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 CAPF &#8211; 2015<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-capf-2015.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-capf-2015\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nHemocyanin is an oxygen-transport protein found in many invertebrates. It is a metalloprotein that contains copper atoms.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nHemocyanin utilizes copper atoms to bind and transport oxygen. Each oxygen binding site in hemocyanin contains two copper atoms.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nIn contrast, hemoglobin, the oxygen-transport protein in vertebrates, uses iron atoms (specifically, heme groups containing iron) for oxygen binding. Hemocyanin is responsible for the blue colour of the blood (hemolymph) in organisms like mollusks (e.g., snails, squids) and some arthropods (e.g., spiders, crustaceans) when oxygenated.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Hemocyanin is an oxygen-transport metalloprotein present in some invertebrate animals. This protein contains : [amp_mcq option1=&#8221;one copper atom&#8221; option2=&#8221;two copper atoms&#8221; option3=&#8221;one iron atom&#8221; option4=&#8221;one magnesium atom&#8221; correct=&#8221;option2&#8243;] This question was previously asked in UPSC CAPF &#8211; 2015 Download PDFAttempt Online Hemocyanin is an oxygen-transport protein found in many invertebrates. It is a metalloprotein that &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Hemocyanin is an oxygen-transport metalloprotein present in some inver\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/hemocyanin-is-an-oxygen-transport-metalloprotein-present-in-some-inver\/#more-89920\">Detailed Solution<span class=\"screen-reader-text\">Hemocyanin is an oxygen-transport metalloprotein present in some inver<\/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":[1085],"tags":[1443,1117,1126],"class_list":["post-89920","post","type-post","status-publish","format-standard","hentry","category-upsc-capf","tag-1443","tag-biology","tag-circulatory-system","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>Hemocyanin is an oxygen-transport metalloprotein present in some inver<\/title>\n<meta name=\"description\" content=\"Hemocyanin is an oxygen-transport protein found in many invertebrates. It is a metalloprotein that contains copper atoms. Hemocyanin utilizes copper atoms to bind and transport oxygen. Each oxygen binding site in hemocyanin contains two copper atoms.\" \/>\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\/hemocyanin-is-an-oxygen-transport-metalloprotein-present-in-some-inver\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hemocyanin is an oxygen-transport metalloprotein present in some inver\" \/>\n<meta property=\"og:description\" content=\"Hemocyanin is an oxygen-transport protein found in many invertebrates. It is a metalloprotein that contains copper atoms. Hemocyanin utilizes copper atoms to bind and transport oxygen. Each oxygen binding site in hemocyanin contains two copper atoms.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/hemocyanin-is-an-oxygen-transport-metalloprotein-present-in-some-inver\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T10:17:15+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":"Hemocyanin is an oxygen-transport metalloprotein present in some inver","description":"Hemocyanin is an oxygen-transport protein found in many invertebrates. It is a metalloprotein that contains copper atoms. Hemocyanin utilizes copper atoms to bind and transport oxygen. Each oxygen binding site in hemocyanin contains two copper atoms.","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\/hemocyanin-is-an-oxygen-transport-metalloprotein-present-in-some-inver\/","og_locale":"en_US","og_type":"article","og_title":"Hemocyanin is an oxygen-transport metalloprotein present in some inver","og_description":"Hemocyanin is an oxygen-transport protein found in many invertebrates. It is a metalloprotein that contains copper atoms. Hemocyanin utilizes copper atoms to bind and transport oxygen. Each oxygen binding site in hemocyanin contains two copper atoms.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/hemocyanin-is-an-oxygen-transport-metalloprotein-present-in-some-inver\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T10:17:15+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\/hemocyanin-is-an-oxygen-transport-metalloprotein-present-in-some-inver\/","url":"https:\/\/exam.pscnotes.com\/mcq\/hemocyanin-is-an-oxygen-transport-metalloprotein-present-in-some-inver\/","name":"Hemocyanin is an oxygen-transport metalloprotein present in some inver","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T10:17:15+00:00","dateModified":"2025-06-01T10:17:15+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Hemocyanin is an oxygen-transport protein found in many invertebrates. It is a metalloprotein that contains copper atoms. Hemocyanin utilizes copper atoms to bind and transport oxygen. 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