{"id":84916,"date":"2025-06-01T02:55:36","date_gmt":"2025-06-01T02:55:36","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=84916"},"modified":"2025-06-01T02:55:36","modified_gmt":"2025-06-01T02:55:36","slug":"which-one-of-the-following-functions-is-not-carried-out-by-smooth-en","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-functions-is-not-carried-out-by-smooth-en\/","title":{"rendered":"Which one of the following functions is not carried out by smooth en"},"content":{"rendered":"

Which one of the following functions is not<\/b> carried out by smooth endoplasmic reticulum?<\/p>\n

[amp_mcq option1=”Transport of materials” option2=”Synthesis of lipid” option3=”Synthesis of protein” option4=”Synthesis of steroid hormone” correct=”option3″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-1 – 2019<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe correct option is C.
\n<\/section>\n
\nThe endoplasmic reticulum (ER) is involved in various cellular functions. The rough endoplasmic reticulum (RER) is characterized by the presence of ribosomes on its surface and is primarily responsible for the synthesis and modification of proteins destined for secretion, insertion into membranes, or delivery to other organelles. The smooth endoplasmic reticulum (SER) lacks ribosomes and is involved in lipid synthesis, steroid hormone synthesis, detoxification, and calcium storage. Protein synthesis is mainly carried out by ribosomes, either free in the cytoplasm or attached to the RER. Therefore, synthesis of protein is not a primary function of the smooth endoplasmic reticulum.
\n<\/section>\n
\nTransport of materials (lipids, proteins) through vesicles budding from the ER is a function of both RER and SER. Steroid hormones are lipids derived from cholesterol, and their synthesis occurs in the SER.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following functions is not carried out by smooth endoplasmic reticulum? [amp_mcq option1=”Transport of materials” option2=”Synthesis of lipid” option3=”Synthesis of protein” option4=”Synthesis of steroid hormone” correct=”option3″] This question was previously asked in UPSC CDS-1 – 2019 Download PDFAttempt Online The correct option is C. The endoplasmic reticulum (ER) is involved in various … <\/p>\n

Detailed SolutionWhich one of the following functions is not carried out by smooth en<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1087],"tags":[1119,1117,1152],"class_list":["post-84916","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1119","tag-biology","tag-cell","no-featured-image-padding"],"yoast_head":"\nWhich one of the following functions is not carried out by smooth en<\/title>\n<meta name=\"description\" content=\"The correct option is C. The endoplasmic reticulum (ER) is involved in various cellular functions. The rough endoplasmic reticulum (RER) is characterized by the presence of ribosomes on its surface and is primarily responsible for the synthesis and modification of proteins destined for secretion, insertion into membranes, or delivery to other organelles. The smooth endoplasmic reticulum (SER) lacks ribosomes and is involved in lipid synthesis, steroid hormone synthesis, detoxification, and calcium storage. Protein synthesis is mainly carried out by ribosomes, either free in the cytoplasm or attached to the RER. Therefore, synthesis of protein is not a primary function of the smooth endoplasmic reticulum.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-functions-is-not-carried-out-by-smooth-en\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following functions is not carried out by smooth en\" \/>\n<meta property=\"og:description\" content=\"The correct option is C. The endoplasmic reticulum (ER) is involved in various cellular functions. The rough endoplasmic reticulum (RER) is characterized by the presence of ribosomes on its surface and is primarily responsible for the synthesis and modification of proteins destined for secretion, insertion into membranes, or delivery to other organelles. The smooth endoplasmic reticulum (SER) lacks ribosomes and is involved in lipid synthesis, steroid hormone synthesis, detoxification, and calcium storage. Protein synthesis is mainly carried out by ribosomes, either free in the cytoplasm or attached to the RER. Therefore, synthesis of protein is not a primary function of the smooth endoplasmic reticulum.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-functions-is-not-carried-out-by-smooth-en\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T02:55:36+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which one of the following functions is not carried out by smooth en","description":"The correct option is C. The endoplasmic reticulum (ER) is involved in various cellular functions. The rough endoplasmic reticulum (RER) is characterized by the presence of ribosomes on its surface and is primarily responsible for the synthesis and modification of proteins destined for secretion, insertion into membranes, or delivery to other organelles. The smooth endoplasmic reticulum (SER) lacks ribosomes and is involved in lipid synthesis, steroid hormone synthesis, detoxification, and calcium storage. Protein synthesis is mainly carried out by ribosomes, either free in the cytoplasm or attached to the RER. Therefore, synthesis of protein is not a primary function of the smooth endoplasmic reticulum.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-functions-is-not-carried-out-by-smooth-en\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following functions is not carried out by smooth en","og_description":"The correct option is C. The endoplasmic reticulum (ER) is involved in various cellular functions. The rough endoplasmic reticulum (RER) is characterized by the presence of ribosomes on its surface and is primarily responsible for the synthesis and modification of proteins destined for secretion, insertion into membranes, or delivery to other organelles. The smooth endoplasmic reticulum (SER) lacks ribosomes and is involved in lipid synthesis, steroid hormone synthesis, detoxification, and calcium storage. Protein synthesis is mainly carried out by ribosomes, either free in the cytoplasm or attached to the RER. Therefore, synthesis of protein is not a primary function of the smooth endoplasmic reticulum.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-functions-is-not-carried-out-by-smooth-en\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T02:55:36+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-functions-is-not-carried-out-by-smooth-en\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-functions-is-not-carried-out-by-smooth-en\/","name":"Which one of the following functions is not carried out by smooth en","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T02:55:36+00:00","dateModified":"2025-06-01T02:55:36+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct option is C. The endoplasmic reticulum (ER) is involved in various cellular functions. The rough endoplasmic reticulum (RER) is characterized by the presence of ribosomes on its surface and is primarily responsible for the synthesis and modification of proteins destined for secretion, insertion into membranes, or delivery to other organelles. The smooth endoplasmic reticulum (SER) lacks ribosomes and is involved in lipid synthesis, steroid hormone synthesis, detoxification, and calcium storage. Protein synthesis is mainly carried out by ribosomes, either free in the cytoplasm or attached to the RER. 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