In C3 plants the conservation of water promotes:<\/p>\n\n\n\n
photorespiration
photosynthesis
a shift to C4 photosynthesis
the light reactions
the opening of stomata<\/p>\n\n\n\n
The Correct Answer and Explanation is:<\/mark><\/strong><\/p>\n\n\n\n Correct Answer: Photorespiration<\/strong><\/p>\n\n\n\n In C3 plants, conservation of water<\/strong>\u2014typically through the closing of stomata<\/strong>\u2014leads to a condition that promotes photorespiration<\/strong>, rather than photosynthesis or the other processes listed.<\/p>\n\n\n\n C3 plants are the most common type of plants, and they perform photosynthesis through the Calvin cycle<\/strong>, where CO\u2082 is fixed by the enzyme Rubisco<\/strong>. The first stable product formed is a 3-carbon compound, 3-phosphoglycerate (hence the name C3<\/em> plants).<\/p>\n\n\n\n When the plant needs to conserve water, especially under hot or dry conditions, stomata (tiny pores on leaves)<\/strong> close to reduce water loss through transpiration<\/strong>. However, this also limits the entry of CO\u2082<\/strong> into the leaf and traps O\u2082<\/strong> inside.<\/p>\n\n\n\n Rubisco, the key enzyme in the Calvin cycle, has dual affinity<\/strong>: it can bind to either CO\u2082<\/strong> or O\u2082<\/strong>. When CO\u2082 levels drop<\/strong> (due to stomatal closure) and O\u2082 levels rise<\/strong>, Rubisco increasingly binds to O\u2082 instead of CO\u2082<\/strong>. This triggers photorespiration<\/strong>, a wasteful process in which the plant uses energy<\/strong> and releases CO\u2082<\/strong> without producing sugars.<\/p>\n\n\n\n Photorespiration competes with photosynthesis and reduces its efficiency. While it may serve some protective functions under stress, it is generally seen as a loss of productivity<\/strong> for C3 plants.<\/p>\n\n\n\n In C3 plants, conserving water by closing stomata reduces CO\u2082 intake and promotes photorespiration<\/strong>, making it the correct answer.<\/p>\n","protected":false},"excerpt":{"rendered":" In C3 plants the conservation of water promotes: photorespirationphotosynthesisa shift to C4 photosynthesisthe light reactionsthe opening of stomata The Correct Answer and Explanation is: Correct Answer: Photorespiration Explanation: In C3 plants, conservation of water\u2014typically through the closing of stomata\u2014leads to a condition that promotes photorespiration, rather than photosynthesis or the other processes listed. Understanding C3 […]<\/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-210214","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/210214","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=210214"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/210214\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=210214"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=210214"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=210214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n
Understanding C3 Plants:<\/h4>\n\n\n\n
Water Conservation and Stomatal Closure:<\/h4>\n\n\n\n
Photorespiration:<\/h4>\n\n\n\n
Why Other Options Are Incorrect:<\/h4>\n\n\n\n
\n
Conclusion:<\/h3>\n\n\n\n