When two amino acids are joined via a peptide bond, what is the mass of the byproduct of the reaction?<\/p>\n\n\n\n
The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n When two amino acids are joined via a peptide bond, the reaction results in the formation of a dipeptide and the release of a molecule of water (H\u2082O). The mass of the byproduct, which is water, is approximately 18 grams per mole (g\/mol).<\/p>\n\n\n\n A peptide bond is a covalent bond that links the amino group (-NH\u2082) of one amino acid to the carboxyl group (-COOH) of another, with the elimination of a water molecule. This process is known as dehydration synthesis or condensation reaction because it involves the removal of a water molecule as the amino acids combine.<\/p>\n\n\n\n Let’s consider the general structure of amino acids. Each amino acid has a central carbon atom (C\u03b1), an amino group, a carboxyl group, a hydrogen atom, and a variable R group (side chain). When two amino acids react, the carboxyl group of one amino acid interacts with the amino group of another. During this interaction, the -OH from the carboxyl group and one -H from the amino group are removed, combining to form water (H\u2082O).<\/p>\n\n\n\n In terms of molecular weights, the average molecular weight of an amino acid varies but is typically around 110 g\/mol. When two amino acids combine to form a dipeptide, the total mass would be approximately 220 g\/mol (110 g\/mol + 110 g\/mol). However, because a water molecule (H\u2082O), which weighs about 18 g\/mol, is released during the formation of the peptide bond, the mass of the resultant dipeptide is 220 g\/mol – 18 g\/mol = 202 g\/mol.<\/p>\n\n\n\n In summary, the byproduct of the reaction when two amino acids are joined by a peptide bond is water, with a mass of approximately 18 g\/mol. This reaction is fundamental in biochemistry as it forms the building blocks of proteins, which are crucial for various biological functions.<\/p>\n","protected":false},"excerpt":{"rendered":" When two amino acids are joined via a peptide bond, what is the mass of the byproduct of the reaction? The Correct Answer and Explanation is : When two amino acids are joined via a peptide bond, the reaction results in the formation of a dipeptide and the release of a molecule of water (H\u2082O). […]<\/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-156927","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/156927","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=156927"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/156927\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=156927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=156927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=156927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation<\/h3>\n\n\n\n