{"id":201931,"date":"2025-03-16T13:40:51","date_gmt":"2025-03-16T13:40:51","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=201931"},"modified":"2025-03-16T13:40:53","modified_gmt":"2025-03-16T13:40:53","slug":"steps-in-enzyme-catalysis","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/03\/16\/steps-in-enzyme-catalysis\/","title":{"rendered":"Steps in enzyme catalysis"},"content":{"rendered":"\n

Steps in enzyme catalysis<\/p>\n\n\n\n

Match each description with the appropriate step in this example of enzyme catalysis.<\/p>\n\n\n\n

The binding of the substrate and enzyme places stress on the glucose-fructose bond, and the bond breaks.<\/p>\n\n\n\n

The substrate, sucrose, consists of glucose and fructose bonded together.<\/p>\n\n\n\n

Products are released, and the enzyme is free to bind other substrates.<\/p>\n\n\n\n

The substrate binds to the active site of the enzyme, forming an enzyme-substrate complex.<\/p>\n\n\n\n

The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n

Correct Matching of Steps in Enzyme Catalysis:<\/h3>\n\n\n\n
    \n
  1. The substrate, sucrose, consists of glucose and fructose bonded together.<\/strong> \u2192 Substrate Identification<\/strong><\/li>\n\n\n\n
  2. The substrate binds to the active site of the enzyme, forming an enzyme-substrate complex.<\/strong> \u2192 Enzyme-Substrate Complex Formation<\/strong><\/li>\n\n\n\n
  3. The binding of the substrate and enzyme places stress on the glucose-fructose bond, and the bond breaks.<\/strong> \u2192 Catalysis (Transition State and Bond Breaking)<\/strong><\/li>\n\n\n\n
  4. Products are released, and the enzyme is free to bind other substrates.<\/strong> \u2192 Product Release and Enzyme Recycling<\/strong><\/li>\n<\/ol>\n\n\n\n
    \n\n\n\n

    Explanation:<\/h3>\n\n\n\n

    Enzyme catalysis is a biochemical process that speeds up chemical reactions by lowering the activation energy required for a reaction to proceed. The breakdown of sucrose into glucose and fructose by an enzyme such as sucrase follows a series of steps:<\/p>\n\n\n\n

      \n
    1. Substrate Identification<\/strong>: The process begins with recognizing the substrate. In this case, sucrose is composed of glucose and fructose linked by a glycosidic bond. Enzymes are highly specific and recognize particular substrates based on their shape and chemical properties.<\/li>\n\n\n\n
    2. Enzyme-Substrate Complex Formation<\/strong>: The substrate binds to the enzyme\u2019s active site<\/strong>, forming an enzyme-substrate complex. This binding is highly specific and often follows the lock-and-key model<\/strong> or induced fit model<\/strong>, where the enzyme slightly changes shape to fit the substrate.<\/li>\n\n\n\n
    3. Catalysis (Transition State and Bond Breaking)<\/strong>: The enzyme applies stress to the bond between glucose and fructose, reducing the energy required for the bond to break. This process occurs at the transition state<\/strong>, where the enzyme stabilizes the breaking of the glycosidic bond.<\/li>\n\n\n\n
    4. Product Release and Enzyme Recycling<\/strong>: Once the bond is broken, the products (glucose and fructose) are released from the enzyme. The enzyme itself remains unchanged and can bind new sucrose molecules to repeat the process.<\/li>\n<\/ol>\n\n\n\n

      This cycle allows enzymes to function efficiently, catalyzing reactions multiple times without being consumed.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Steps in enzyme catalysis Match each description with the appropriate step in this example of enzyme catalysis. The binding of the substrate and enzyme places stress on the glucose-fructose bond, and the bond breaks. The substrate, sucrose, consists of glucose and fructose bonded together. Products are released, and the enzyme is free to bind other […]<\/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-201931","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/201931","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=201931"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/201931\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=201931"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=201931"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=201931"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}