What is a rigid structure made of cellulose and plant cells?<\/p>\n\n\n\n
The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n The correct answer is: Cell Wall<\/strong><\/p>\n\n\n\n In plant cells, the cell wall<\/strong> is a rigid, structural layer that provides support, protection, and shape to the cell. Composed primarily of cellulose<\/strong>, a complex carbohydrate or polysaccharide, the cell wall is a distinguishing feature of plant cells, setting them apart from animal cells, which lack this structure. Cellulose fibers form a dense mesh that gives the cell wall its strength and rigidity, making it vital for plants to stand upright and resist external stresses.<\/p>\n\n\n\n The cell wall serves multiple important functions. First, it acts as a protective barrier<\/strong> against physical injury and pathogens, including bacteria, fungi, and viruses. The cell wall’s rigidity is essential for plant cells to withstand environmental factors such as wind, water pressure, and gravity, which might otherwise deform or damage the cells.<\/p>\n\n\n\n Another significant role of the cell wall is to help maintain turgor pressure<\/strong>. Turgor pressure is the pressure of the cell contents against the cell wall, which occurs due to water uptake in the cell’s vacuole. This pressure keeps the plant cells firm and helps maintain the plant\u2019s overall structural integrity, contributing to its upright posture. When a plant cell loses water, the turgor pressure decreases, leading to wilting, a visible sign of dehydration.<\/p>\n\n\n\n In addition to cellulose, the cell wall contains other polysaccharides, such as hemicellulose<\/strong> and pectin<\/strong>, which add flexibility and allow the wall to stretch as the cell grows. Secondary cell walls, which develop as plant cells mature, may also contain lignin, a complex organic polymer that further strengthens the structure, especially in woody plants.<\/p>\n\n\n\n Overall, the plant cell wall is crucial for growth, survival, and structural integrity, allowing plants to thrive in diverse environments by providing strength, flexibility, and resilience to external pressures.<\/p>\n","protected":false},"excerpt":{"rendered":" What is a rigid structure made of cellulose and plant cells? The Correct Answer and Explanation is: The correct answer is: Cell Wall Explanation: In plant cells, the cell wall is a rigid, structural layer that provides support, protection, and shape to the cell. Composed primarily of cellulose, a complex carbohydrate or polysaccharide, the cell […]<\/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-165719","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/165719","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=165719"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/165719\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=165719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=165719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=165719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\n\n\nExplanation:<\/h3>\n\n\n\n