{"id":88250,"date":"2025-06-01T07:06:25","date_gmt":"2025-06-01T07:06:25","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=88250"},"modified":"2025-06-01T07:06:25","modified_gmt":"2025-06-01T07:06:25","slug":"it-is-difficult-to-kill-viruses-because-they","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/it-is-difficult-to-kill-viruses-because-they\/","title":{"rendered":"It is difficult to kill viruses because they"},"content":{"rendered":"<p>It is difficult to kill viruses because they<\/p>\n<p>[amp_mcq option1=&#8221;consist of tough protein coat&#8221; option2=&#8221;are very small in size&#8221; option3=&#8221;lack cellular structure&#8221; option4=&#8221;spend a lot of time inside the host&#8217;s cells&#8221; correct=&#8221;option3&#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 NDA-2 &#8211; 2016<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-nda-2-2016.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-nda-2-2016\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nViruses lack cellular structure and metabolic machinery of their own. They are obligate intracellular parasites, relying entirely on the host cell&#8217;s machinery for replication.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nThe absence of their own metabolic processes means that many common antimicrobial treatments, such as antibiotics which target bacterial cellular functions, are ineffective against viruses. Developing antiviral drugs is challenging because they must target viral processes without harming the host cell&#8217;s similar processes.<br \/>\n<\/section>\n<section id=\"pyq-additional_information\">\nWhile having a protein coat (A) and small size (B) are characteristics of viruses, they don&#8217;t inherently make them difficult to kill compared to other microbes. Spending time inside host cells (D) makes them inaccessible to some therapies and antibodies, contributing to the difficulty in *treating* viral infections, but the fundamental reason for the difficulty in *killing* them selectively lies in their non-cellular nature and dependence on host processes.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>It is difficult to kill viruses because they [amp_mcq option1=&#8221;consist of tough protein coat&#8221; option2=&#8221;are very small in size&#8221; option3=&#8221;lack cellular structure&#8221; option4=&#8221;spend a lot of time inside the host&#8217;s cells&#8221; correct=&#8221;option3&#8243;] This question was previously asked in UPSC NDA-2 &#8211; 2016 Download PDFAttempt Online Viruses lack cellular structure and metabolic machinery of their own. &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"It is difficult to kill viruses because they\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/it-is-difficult-to-kill-viruses-because-they\/#more-88250\">Detailed Solution<span class=\"screen-reader-text\">It is difficult to kill viruses because they<\/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":[1094],"tags":[1098,1117,1139],"class_list":["post-88250","post","type-post","status-publish","format-standard","hentry","category-upsc-nda-2","tag-1098","tag-biology","tag-viral-diseases","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>It is difficult to kill viruses because they<\/title>\n<meta name=\"description\" content=\"Viruses lack cellular structure and metabolic machinery of their own. They are obligate intracellular parasites, relying entirely on the host cell&#039;s machinery for replication. The absence of their own metabolic processes means that many common antimicrobial treatments, such as antibiotics which target bacterial cellular functions, are ineffective against viruses. Developing antiviral drugs is challenging because they must target viral processes without harming the host cell&#039;s similar processes.\" \/>\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\/it-is-difficult-to-kill-viruses-because-they\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"It is difficult to kill viruses because they\" \/>\n<meta property=\"og:description\" content=\"Viruses lack cellular structure and metabolic machinery of their own. They are obligate intracellular parasites, relying entirely on the host cell&#039;s machinery for replication. The absence of their own metabolic processes means that many common antimicrobial treatments, such as antibiotics which target bacterial cellular functions, are ineffective against viruses. Developing antiviral drugs is challenging because they must target viral processes without harming the host cell&#039;s similar processes.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/it-is-difficult-to-kill-viruses-because-they\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T07:06:25+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":"It is difficult to kill viruses because they","description":"Viruses lack cellular structure and metabolic machinery of their own. They are obligate intracellular parasites, relying entirely on the host cell's machinery for replication. The absence of their own metabolic processes means that many common antimicrobial treatments, such as antibiotics which target bacterial cellular functions, are ineffective against viruses. Developing antiviral drugs is challenging because they must target viral processes without harming the host cell's similar processes.","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\/it-is-difficult-to-kill-viruses-because-they\/","og_locale":"en_US","og_type":"article","og_title":"It is difficult to kill viruses because they","og_description":"Viruses lack cellular structure and metabolic machinery of their own. They are obligate intracellular parasites, relying entirely on the host cell's machinery for replication. The absence of their own metabolic processes means that many common antimicrobial treatments, such as antibiotics which target bacterial cellular functions, are ineffective against viruses. Developing antiviral drugs is challenging because they must target viral processes without harming the host cell's similar processes.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/it-is-difficult-to-kill-viruses-because-they\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T07:06:25+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\/it-is-difficult-to-kill-viruses-because-they\/","url":"https:\/\/exam.pscnotes.com\/mcq\/it-is-difficult-to-kill-viruses-because-they\/","name":"It is difficult to kill viruses because they","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T07:06:25+00:00","dateModified":"2025-06-01T07:06:25+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Viruses lack cellular structure and metabolic machinery of their own. They are obligate intracellular parasites, relying entirely on the host cell's machinery for replication. The absence of their own metabolic processes means that many common antimicrobial treatments, such as antibiotics which target bacterial cellular functions, are ineffective against viruses. Developing antiviral drugs is challenging because they must target viral processes without harming the host cell's similar processes.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/it-is-difficult-to-kill-viruses-because-they\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/it-is-difficult-to-kill-viruses-because-they\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/it-is-difficult-to-kill-viruses-because-they\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC NDA-2","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-nda-2\/"},{"@type":"ListItem","position":3,"name":"It is difficult to kill viruses because they"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/88250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=88250"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/88250\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=88250"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=88250"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=88250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}