{"id":261187,"date":"2025-07-19T21:31:21","date_gmt":"2025-07-19T21:31:21","guid":{"rendered":"https:\/\/learnexams.com\/blog\/?p=261187"},"modified":"2025-07-19T21:31:23","modified_gmt":"2025-07-19T21:31:23","slug":"a-single-celled-organism-that-lacks-a-membrane-bound-nucleus-mitochondria-or-any-other-membrane-bound-organelle","status":"publish","type":"post","link":"https:\/\/www.learnexams.com\/blog\/2025\/07\/19\/a-single-celled-organism-that-lacks-a-membrane-bound-nucleus-mitochondria-or-any-other-membrane-bound-organelle\/","title":{"rendered":"A single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle"},"content":{"rendered":"\n

A single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle,” A. Prokaryote B. Eukaryote C. Nucleus D. Animal Cell<\/p>\n\n\n\n

The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n

The correct answer is A. Prokaryote<\/strong>.<\/p>\n\n\n\n

A prokaryote is a single-celled organism that does not have a membrane-bound nucleus, mitochondria, or any other membrane-bound organelles. These organisms are generally simpler and smaller in comparison to eukaryotes. Prokaryotes belong to two main domains: Bacteria<\/strong> and Archaea<\/strong>.<\/p>\n\n\n\n

Explanation:<\/h3>\n\n\n\n
    \n
  1. Prokaryotes<\/strong> are distinguished by their simple cell structure. They have a single, circular DNA molecule located in the nucleoid<\/strong> region, which is not enclosed by a membrane. This sets them apart from eukaryotic cells, which have a defined nucleus that houses the cell’s genetic material inside a nuclear membrane.<\/li>\n\n\n\n
  2. Prokaryotic cells lack mitochondria<\/strong>, chloroplasts<\/strong>, and other membrane-bound organelles that are found in eukaryotic cells. Instead, they have a simpler cellular organization with structures like ribosomes, a plasma membrane, and a cell wall. The absence of membrane-bound organelles means prokaryotes are generally less compartmentalized than eukaryotic cells.<\/li>\n\n\n\n
  3. Eukaryotes<\/strong>, on the other hand, have a more complex structure, with a membrane-bound nucleus containing their genetic material. They also have other membrane-bound organelles, such as mitochondria (the powerhouse of the cell), the endoplasmic reticulum, Golgi apparatus, and more.<\/li>\n\n\n\n
  4. Nucleus<\/strong> refers specifically to the organelle that holds a eukaryotic cell’s genetic material. It does not apply to prokaryotes, as they lack a true nucleus.<\/li>\n\n\n\n
  5. Animal cells<\/strong> are a type of eukaryotic cell, meaning they contain a nucleus and other membrane-bound organelles, distinguishing them from prokaryotes.<\/li>\n<\/ol>\n\n\n\n

    In summary, the defining characteristic of prokaryotes is their lack of a membrane-bound nucleus and organelles, which is why they are simpler organisms compared to eukaryotes.<\/p>\n\n\n\n

    \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

    A single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle,” A. Prokaryote B. Eukaryote C. Nucleus D. Animal Cell The Correct Answer and Explanation is: The correct answer is A. Prokaryote. A prokaryote is a single-celled organism that does not have a membrane-bound nucleus, mitochondria, or any other membrane-bound organelles. These […]<\/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-261187","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/261187","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=261187"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/261187\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=261187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=261187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=261187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}