Which statements about peptide bonds are true? <\/p>\n\n\n\n
A The formation of a peptide bond involves a dehydration reaction. <\/p>\n\n\n\n
B A tripeptide contains three amino acid residues. <\/p>\n\n\n\n
C Peptide bonds are ester linkages. <\/p>\n\n\n\n
D A tetrapeptide contains five amino acid residues. <\/p>\n\n\n\n
E Peptides are polymers of proteins.<\/p>\n\n\n\n
The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n \u2705 A<\/strong> The formation of a peptide bond involves a dehydration reaction. The correct statements are A and B<\/strong>, as they accurately describe peptide bond formation and peptide structure.<\/p>\n","protected":false},"excerpt":{"rendered":" Which statements about peptide bonds are true? A The formation of a peptide bond involves a dehydration reaction. B A tripeptide contains three amino acid residues. C Peptide bonds are ester linkages. D A tetrapeptide contains five amino acid residues. E Peptides are polymers of proteins. The correct answer and explanation is : Correct Answers: […]<\/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-199280","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/199280","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=199280"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/199280\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=199280"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=199280"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=199280"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Correct Answers:<\/h3>\n\n\n\n
\u2705 B<\/strong> A tripeptide contains three amino acid residues.<\/p>\n\n\n\nExplanation:<\/h3>\n\n\n\n
\n
Peptide bonds are formed through a condensation (dehydration) reaction<\/strong>, where a water molecule (H\u2082O) is removed as the carboxyl (-COOH) group of one amino acid reacts with the amino (-NH\u2082) group of another. This reaction results in the formation of a covalent amide bond<\/strong>, linking amino acids together in a peptide chain.<\/li>\n\n\n\n
A tripeptide<\/strong> is a short peptide consisting of three amino acids<\/strong> connected by two peptide bonds<\/strong>. Each amino acid in a peptide is referred to as a residue<\/strong> after it has joined the chain.<\/li>\n\n\n\n
Peptide bonds are amide bonds<\/strong>, not ester linkages<\/strong>. Amide bonds are formed between the carboxyl (-COOH) and amino (-NH\u2082) groups of amino acids, whereas ester bonds occur between carboxyl and hydroxyl (-OH) groups (as seen in lipids and some other biological molecules).<\/li>\n\n\n\n
A tetrapeptide<\/strong> consists of four<\/strong> amino acid residues, not five. The number of amino acids in a peptide corresponds directly to the name prefix (e.g., tripeptide = 3, tetrapeptide = 4, pentapeptide = 5).<\/li>\n\n\n\n
Proteins are polymers of peptides<\/strong>, not the other way around. Peptides are short chains<\/strong> of amino acids, while proteins are large, functional macromolecules<\/strong> composed of one or more long polypeptide chains.<\/li>\n<\/ol>\n\n\n\nConclusion:<\/h3>\n\n\n\n