What chemical is responsible for binding carbon dioxide to hemoglobin? <\/p>\n\n\n\n
A Amylase <\/p>\n\n\n\n
B Surfactant <\/p>\n\n\n\n
C Oxyhemoglobin <\/p>\n\n\n\n
D Carbaminohemoglobin <\/p>\n\n\n\n
E Plasma Albumins<\/p>\n\n\n\n
The correct answer and explanation is:<\/mark><\/strong><\/p>\n\n\n\n The correct answer is D. Carbaminohemoglobin<\/strong>.<\/p>\n\n\n\n Hemoglobin in red blood cells has the primary role of transporting oxygen from the lungs to tissues and returning carbon dioxide (CO\u2082) from tissues to the lungs. Hemoglobin can bind to CO\u2082 to form a compound called carbaminohemoglobin<\/strong>. This binding occurs when CO\u2082 interacts with the amino groups of the hemoglobin molecule.<\/p>\n\n\n\n Carbaminohemoglobin accounts for about 20-30% of the CO\u2082 transported in the blood. The remaining CO\u2082 is transported either dissolved in plasma or as bicarbonate ions, which form through the action of the enzyme carbonic anhydrase. This enzyme helps convert CO\u2082 into carbonic acid, which then dissociates into bicarbonate and hydrogen ions.<\/p>\n\n\n\n The binding of CO\u2082 to hemoglobin differs from the binding of oxygen, which binds to the iron atom in the heme group of hemoglobin. CO\u2082 binding, however, occurs at different sites in the hemoglobin molecule, primarily at the amino groups of the polypeptide chains. The formation of carbaminohemoglobin helps to facilitate the release of oxygen in tissues because the binding of CO\u2082 to hemoglobin promotes the unloading of oxygen. This is part of the Bohr effect<\/strong>, where the presence of high CO\u2082 concentrations in tissues causes hemoglobin to release oxygen more readily.<\/p>\n\n\n\n Once carbaminohemoglobin reaches the lungs, the CO\u2082 is released from hemoglobin and exhaled. This release is promoted by the lower concentration of CO\u2082 in the lungs, which shifts the equilibrium and causes CO\u2082 to dissociate from hemoglobin, completing the cycle of gas exchange.<\/p>\n\n\n\n Understanding how CO\u2082 binds to hemoglobin and the role of carbaminohemoglobin is crucial in explaining how blood transports both oxygen and carbon dioxide effectively.<\/p>\n","protected":false},"excerpt":{"rendered":" What chemical is responsible for binding carbon dioxide to hemoglobin? A Amylase B Surfactant C Oxyhemoglobin D Carbaminohemoglobin E Plasma Albumins The correct answer and explanation is: The correct answer is D. Carbaminohemoglobin. Hemoglobin in red blood cells has the primary role of transporting oxygen from the lungs to tissues and returning carbon dioxide (CO\u2082) […]<\/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-266088","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/266088","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=266088"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/266088\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=266088"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=266088"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=266088"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}