{"id":88057,"date":"2025-06-01T07:00:37","date_gmt":"2025-06-01T07:00:37","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88057"},"modified":"2025-06-01T07:00:37","modified_gmt":"2025-06-01T07:00:37","slug":"which-of-the-following-statements-regarding-animal-cell-membrane-is-co","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-animal-cell-membrane-is-co\/","title":{"rendered":"Which of the following statements regarding animal cell membrane is co"},"content":{"rendered":"

Which of the following statements regarding animal cell membrane is correct ?<\/p>\n

[amp_mcq option1=”They are composed of phospholipids only.” option2=”They are composed of proteins only.” option3=”They are composed of phospholipids and proteins only.” option4=”They are composed of phospholipids, proteins and cholesterol (lipid).” correct=”option4″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC NDA-1 – 2024<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe animal cell membrane is a complex structure composed of a phospholipid bilayer, various proteins embedded within or associated with the bilayer, and cholesterol. Phospholipids form the basic structural framework. Proteins perform diverse functions like transport, signaling, and recognition. Cholesterol, a type of lipid, is present in animal cell membranes and plays a crucial role in regulating membrane fluidity and stability. Therefore, the animal cell membrane is composed of phospholipids, proteins, and cholesterol.
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\nThe fluid mosaic model is the widely accepted model describing the structure of the cell membrane, depicting it as a fluid bilayer of lipids with proteins embedded or associated with it.
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\nPlant cell membranes also have phospholipid bilayers and proteins, but they typically lack cholesterol. Instead, they contain other sterols. Cell membranes also contain carbohydrates, usually attached to proteins (glycoproteins) or lipids (glycolipids), which are involved in cell recognition and adhesion, although the options only list phospholipids, proteins, and cholesterol as primary constituents.
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Which of the following statements regarding animal cell membrane is correct ? [amp_mcq option1=”They are composed of phospholipids only.” option2=”They are composed of proteins only.” option3=”They are composed of phospholipids and proteins only.” option4=”They are composed of phospholipids, proteins and cholesterol (lipid).” correct=”option4″] This question was previously asked in UPSC NDA-1 – 2024 Download PDFAttempt … <\/p>\n

Detailed SolutionWhich of the following statements regarding animal cell membrane is co<\/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":[1093],"tags":[1103,1117,1152],"class_list":["post-88057","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-1","tag-1103","tag-biology","tag-cell","no-featured-image-padding"],"yoast_head":"\nWhich of the following statements regarding animal cell membrane is co<\/title>\n<meta name=\"description\" content=\"The animal cell membrane is a complex structure composed of a phospholipid bilayer, various proteins embedded within or associated with the bilayer, and cholesterol. Phospholipids form the basic structural framework. Proteins perform diverse functions like transport, signaling, and recognition. Cholesterol, a type of lipid, is present in animal cell membranes and plays a crucial role in regulating membrane fluidity and stability. Therefore, the animal cell membrane is composed of phospholipids, proteins, and cholesterol. The fluid mosaic model is the widely accepted model describing the structure of the cell membrane, depicting it as a fluid bilayer of lipids with proteins embedded or associated with it.\" \/>\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-of-the-following-statements-regarding-animal-cell-membrane-is-co\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following statements regarding animal cell membrane is co\" \/>\n<meta property=\"og:description\" content=\"The animal cell membrane is a complex structure composed of a phospholipid bilayer, various proteins embedded within or associated with the bilayer, and cholesterol. Phospholipids form the basic structural framework. Proteins perform diverse functions like transport, signaling, and recognition. Cholesterol, a type of lipid, is present in animal cell membranes and plays a crucial role in regulating membrane fluidity and stability. Therefore, the animal cell membrane is composed of phospholipids, proteins, and cholesterol. The fluid mosaic model is the widely accepted model describing the structure of the cell membrane, depicting it as a fluid bilayer of lipids with proteins embedded or associated with it.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-animal-cell-membrane-is-co\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:00:37+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 of the following statements regarding animal cell membrane is co","description":"The animal cell membrane is a complex structure composed of a phospholipid bilayer, various proteins embedded within or associated with the bilayer, and cholesterol. 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The fluid mosaic model is the widely accepted model describing the structure of the cell membrane, depicting it as a fluid bilayer of lipids with proteins embedded or associated with it.","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-of-the-following-statements-regarding-animal-cell-membrane-is-co\/","og_locale":"en_US","og_type":"article","og_title":"Which of the following statements regarding animal cell membrane is co","og_description":"The animal cell membrane is a complex structure composed of a phospholipid bilayer, various proteins embedded within or associated with the bilayer, and cholesterol. Phospholipids form the basic structural framework. Proteins perform diverse functions like transport, signaling, and recognition. 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The fluid mosaic model is the widely accepted model describing the structure of the cell membrane, depicting it as a fluid bilayer of lipids with proteins embedded or associated with it.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-animal-cell-membrane-is-co\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:00:37+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-of-the-following-statements-regarding-animal-cell-membrane-is-co\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-regarding-animal-cell-membrane-is-co\/","name":"Which of the following statements regarding animal cell membrane is co","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:00:37+00:00","dateModified":"2025-06-01T07:00:37+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The animal cell membrane is a complex structure composed of a phospholipid bilayer, various proteins embedded within or associated with the bilayer, and cholesterol. 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