How do plants transport water and nutrients?<\/p>\n\n\n\n
The Correct Answer and Explanation is :<\/strong><\/mark><\/p>\n\n\n\n \ue203Plants transport water and nutrients through specialized vascular tissues: the xylem and phloem.\ue204 \ue203The xylem is responsible for moving water and dissolved minerals from the roots to the leaves, while the phloem distributes the products of photosynthesis, primarily sugars, from the leaves to other parts of the plant.\ue204\ue206<\/p>\n\n\n\n Water and Nutrient Transport via Xylem:<\/strong><\/p>\n\n\n\n \ue203Water absorption begins in the roots, where root hairs increase surface area to efficiently take up water and minerals from the soil.\ue204 \ue203This water enters the xylem vessels, which are hollow tubes formed by dead, lignified cells.\ue204 \ue203The movement of water through the xylem is driven by a combination of capillary action, root pressure, and the cohesion-tension mechanism.\ue204\ue206<\/p>\n\n\n\n \ue203The cohesion-tension theory explains that as water evaporates from the leaves through small openings called stomata\u2014a process known as transpiration\u2014it creates a negative pressure that pulls more water upward from the roots through the xylem.\ue204 \ue203This continuous column of water is maintained due to the cohesive properties of water molecules, which stick together, and the adhesive properties, which allow them to stick to the walls of the xylem vessels.\ue204 \ue203This mechanism efficiently transports water and dissolved minerals to all parts of the plant.\ue204 \ue200cite\ue202turn0search13\ue201\ue206<\/p>\n\n\n\n Nutrient Transport via Phloem:<\/strong><\/p>\n\n\n\n \ue203The phloem consists of living cells that transport the products of photosynthesis, primarily sugars, from the leaves (the source) to other parts of the plant (the sinks), such as roots, stems, and fruits.\ue204 \ue203This movement occurs through a process called translocation, which relies on a pressure-flow mechanism.\ue204\ue206<\/p>\n\n\n\n \ue203In the source leaves, sugars are actively loaded into the phloem sieve tubes, increasing the osmotic pressure and drawing water into the phloem from the surrounding tissues.\ue204 \ue203This influx of water creates a high-pressure area that pushes the phloem sap toward the sinks, where sugars are actively unloaded and utilized or stored.\ue204 \ue203The pressure difference between the source and sink regions drives the flow of nutrients throughout the plant.\ue204 \ue200cite\ue202turn0search0\ue201\ue206<\/p>\n\n\n\n \ue203In summary, plants utilize the xylem and phloem to transport water, minerals, and nutrients efficiently.\ue204 \ue203The xylem relies on physical forces like capillary action and transpiration to move water upward, while the phloem uses osmotic pressure gradients to distribute sugars and other nutrients to various parts of the plant.\ue204<\/p>\n","protected":false},"excerpt":{"rendered":" How do plants transport water and nutrients? The Correct Answer and Explanation is : \ue203Plants transport water and nutrients through specialized vascular tissues: the xylem and phloem.\ue204 \ue203The xylem is responsible for moving water and dissolved minerals from the roots to the leaves, while the phloem distributes the products of photosynthesis, primarily sugars, from the […]<\/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-179701","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/179701","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=179701"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/179701\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=179701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=179701"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=179701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}