{"id":86777,"date":"2025-06-01T04:20:35","date_gmt":"2025-06-01T04:20:35","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86777"},"modified":"2025-06-01T04:20:35","modified_gmt":"2025-06-01T04:20:35","slug":"which-among-the-following-are-true-about-hyperthermophile-microbes","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-are-true-about-hyperthermophile-microbes\/","title":{"rendered":"Which among the following are true about hyperthermophile microbes?"},"content":{"rendered":"<p>Which among the following are true about hyperthermophile microbes?<\/p>\n<ul>\n<li>1. The preferred temperature for growth of such microbes is around 45 \u00b0C<\/li>\n<li>2. They prefer to grow and reproduce at over 80 \u00b0C<\/li>\n<li>3. They normally grow in deep sea floors<\/li>\n<li>4. Below 60 \u00b0C they find it too cold and stop growing<\/li>\n<\/ul>\n<p>Select the correct answer using the code given below:<\/p>\n<p>[amp_mcq option1=&#8221;1 and 3&#8243; option2=&#8221;2 and 3 only&#8221; option3=&#8221;2 and 4 only&#8221; option4=&#8221;2, 3 and 4&#8243; correct=&#8221;option4&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC Geoscientist &#8211; 2021<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-geoscientist-2021.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-geoscientist-2021\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">Statements 2 and 3 are true about hyperthermophile microbes. Hyperthermophiles are extremophiles that thrive at very high temperatures, typically optimally above 80 \u00b0C, and are commonly found in environments like deep-sea hydrothermal vents.<\/section>\n<section id=\"pyq-key-points\">Hyperthermophiles represent the upper temperature boundary for life as we know it. Their enzymes and cellular structures are specially adapted to withstand denaturation at extremely high temperatures.<\/section>\n<section id=\"pyq-additional-information\">Statement 1 is incorrect; preferred temperature around 45 \u00b0C describes mesophiles. Statement 4 is incorrect; while they prefer temperatures above 80 \u00b0C, their minimum growth temperature is typically above 60 \u00b0C, but saying they &#8220;stop growing&#8221; below 60 \u00b0C might not be universally true for all species within this group, and some might exhibit very slow growth in the range of 60-80\u00b0C. Deep sea floors, specifically hydrothermal vents, and hot springs are typical habitats.<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which among the following are true about hyperthermophile microbes? 1. The preferred temperature for growth of such microbes is around 45 \u00b0C 2. They prefer to grow and reproduce at over 80 \u00b0C 3. They normally grow in deep sea floors 4. Below 60 \u00b0C they find it too cold and stop growing Select the &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which among the following are true about hyperthermophile microbes?\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-are-true-about-hyperthermophile-microbes\/#more-86777\">Detailed Solution<span class=\"screen-reader-text\">Which among the following are true about hyperthermophile microbes?<\/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":[1091],"tags":[1110,1117,1115],"class_list":["post-86777","post","type-post","status-publish","format-standard","hentry","category-upsc-geoscientist","tag-1110","tag-biology","tag-miscellaneous","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Which among the following are true about hyperthermophile microbes?<\/title>\n<meta name=\"description\" content=\"Statements 2 and 3 are true about hyperthermophile microbes. Hyperthermophiles are extremophiles that thrive at very high temperatures, typically optimally above 80 \u00b0C, and are commonly found in environments like deep-sea hydrothermal vents. Hyperthermophiles represent the upper temperature boundary for life as we know it. Their enzymes and cellular structures are specially adapted to withstand denaturation at extremely high temperatures.\" \/>\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-among-the-following-are-true-about-hyperthermophile-microbes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which among the following are true about hyperthermophile microbes?\" \/>\n<meta property=\"og:description\" content=\"Statements 2 and 3 are true about hyperthermophile microbes. Hyperthermophiles are extremophiles that thrive at very high temperatures, typically optimally above 80 \u00b0C, and are commonly found in environments like deep-sea hydrothermal vents. Hyperthermophiles represent the upper temperature boundary for life as we know it. Their enzymes and cellular structures are specially adapted to withstand denaturation at extremely high temperatures.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-are-true-about-hyperthermophile-microbes\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T04:20:35+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 among the following are true about hyperthermophile microbes?","description":"Statements 2 and 3 are true about hyperthermophile microbes. Hyperthermophiles are extremophiles that thrive at very high temperatures, typically optimally above 80 \u00b0C, and are commonly found in environments like deep-sea hydrothermal vents. Hyperthermophiles represent the upper temperature boundary for life as we know it. Their enzymes and cellular structures are specially adapted to withstand denaturation at extremely high temperatures.","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-among-the-following-are-true-about-hyperthermophile-microbes\/","og_locale":"en_US","og_type":"article","og_title":"Which among the following are true about hyperthermophile microbes?","og_description":"Statements 2 and 3 are true about hyperthermophile microbes. Hyperthermophiles are extremophiles that thrive at very high temperatures, typically optimally above 80 \u00b0C, and are commonly found in environments like deep-sea hydrothermal vents. Hyperthermophiles represent the upper temperature boundary for life as we know it. Their enzymes and cellular structures are specially adapted to withstand denaturation at extremely high temperatures.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-are-true-about-hyperthermophile-microbes\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T04:20:35+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-among-the-following-are-true-about-hyperthermophile-microbes\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-among-the-following-are-true-about-hyperthermophile-microbes\/","name":"Which among the following are true about hyperthermophile microbes?","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T04:20:35+00:00","dateModified":"2025-06-01T04:20:35+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Statements 2 and 3 are true about hyperthermophile microbes. Hyperthermophiles are extremophiles that thrive at very high temperatures, typically optimally above 80 \u00b0C, and are commonly found in environments like deep-sea hydrothermal vents. Hyperthermophiles represent the upper temperature boundary for life as we know it. 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