{"id":3835,"date":"2023-01-09T10:30:26","date_gmt":"2023-01-09T10:30:26","guid":{"rendered":"https:\/\/8thclass.deltapublications.in\/?page_id=3835"},"modified":"2025-08-21T11:57:18","modified_gmt":"2025-08-21T11:57:18","slug":"s-2-f-nitrogen-fixation","status":"publish","type":"page","link":"https:\/\/8thclass.deltapublications.in\/index.php\/s-2-f-nitrogen-fixation\/","title":{"rendered":"s-2.f Nitrogen Fixation"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong> Nitrogen Fixation<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<div style=\"position: relative; width: 100%; height: 0; padding-top: 56.2500%;\n padding-bottom: 0; box-shadow: 0 2px 8px 0 rgba(63,69,81,0.16); margin-top: 1.6em; margin-bottom: 0.9em; overflow: hidden;\n border-radius: 8px; will-change: transform;\">\n  <iframe loading=\"lazy\" style=\"position: absolute; width: 100%; height: 100%; top: 0; left: 0; border: none; padding: 0;margin: 0;\"\n    src=\"https:\/\/www.canva.com\/design\/DAF3tWHl-OQ\/jKNE3nzcTWlqb2Ex-6-dMw\/watch?embed\" allowfullscreen=\"allowfullscreen\" allow=\"fullscreen\">\n  <\/iframe>\n<\/div>\n<a href=\"https:&#x2F;&#x2F;www.canva.com&#x2F;design&#x2F;DAF3tWHl-OQ&#x2F;jKNE3nzcTWlqb2Ex-6-dMw&#x2F;watch?utm_content=DAF3tWHl-OQ&amp;utm_campaign=designshare&amp;utm_medium=embeds&amp;utm_source=link\" target=\"_blank\" rel=\"noopener\">nitrogen fixation<\/a> by Delta publications\n<\/div>\n<\/div>\n\n\n\n<p class=\"has-text-color has-huge-font-size\" style=\"color:#74008b\"><strong>key notes <\/strong>:-<\/p>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-5ef02719c3359a06e97c6f092c0a8c98\" style=\"color:#000060\"><strong>What is Nitrogen Fixation?<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"924\" height=\"924\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-71.png\" alt=\"\" class=\"wp-image-18569\" style=\"width:350px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-71.png 924w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-71-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-71-150x150.png 150w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-71-768x768.png 768w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-71-400x400.png 400w\" sizes=\"auto, (max-width: 924px) 100vw, 924px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Nitrogen fixation is the process of converting atmospheric nitrogen (N\u2082), which cannot be directly used by most living organisms, into a form like ammonia (NH\u2083) or other compounds that plants can absorb and use.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-0a9cb23cfdb29c2a2da4c92d7633303b\" style=\"color:#000060\"><strong>Importance of Nitrogen<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"790\" height=\"511\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-73.png\" alt=\"\" class=\"wp-image-18572\" style=\"width:459px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-73.png 790w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-73-300x194.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-73-768x497.png 768w\" sizes=\"auto, (max-width: 790px) 100vw, 790px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Nitrogen is an essential nutrient for plants as it is a critical component of amino acids, proteins, DNA, and chlorophyll. It helps in plant growth, development, and reproduction.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-f1b4450645d1ec005ff948266aeb2aba\" style=\"color:#000060\"><strong>Atmospheric Nitrogen<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">The atmosphere consists of about 78% nitrogen gas. However, plants and animals cannot use nitrogen in its gaseous form directly.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-15b97d54ca8d459d570924ba08de4720\" style=\"color:#000060\"><strong>Types of Nitrogen Fixation<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Biological Nitrogen Fixation<\/strong>: Carried out by certain bacteria and cyanobacteria (blue-green algae).<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"530\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-75.png\" alt=\"\" class=\"wp-image-18574\" style=\"width:363px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-75.png 650w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-75-300x245.png 300w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Industrial Nitrogen Fixation<\/strong>: Through the Haber-Bosch process, nitrogen is converted into fertilizers.<\/li>\n\n\n\n<li><strong>Natural Nitrogen Fixation<\/strong>: Occurs due to lightning which converts nitrogen gas into nitrates.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-a5a83b0381150758831992b800ebd8f1\" style=\"color:#000060\"><strong>Role of Nitrogen-Fixing Bacteria<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-72.png\" alt=\"\" class=\"wp-image-18575\" style=\"width:450px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-72.png 800w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-72-300x169.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/Untitled-design-72-768x432.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Certain bacteria like <strong>Rhizobium<\/strong>, which live in the root nodules of leguminous plants (e.g., peas, beans), convert atmospheric nitrogen into usable forms.<\/li>\n\n\n\n<li><strong>Free-living bacteria<\/strong> like <strong>Azotobacter<\/strong> and <strong>Clostridium<\/strong> also contribute to nitrogen fixation in the soil.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-755620b02b48e062b209554a685c5e26\" style=\"color:#000060\"><strong>Symbiotic Nitrogen Fixation<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"681\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-76.png\" alt=\"\" class=\"wp-image-18576\" style=\"width:398px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-76.png 850w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-76-300x240.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-76-768x615.png 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">In a symbiotic relationship, bacteria like Rhizobium live in root nodules of leguminous plants and provide them with nitrogen compounds while receiving carbohydrates and shelter from the plant.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-d63f8518b6fd9c2bbbf7af1bd5b5eaed\" style=\"color:#000060\"><strong>Non-Symbiotic Nitrogen Fixation<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Free-living nitrogen-fixing bacteria in the soil convert atmospheric nitrogen into ammonia independently, without forming relationships with plants.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-d1514a1b6bdb60a8412a49f791916650\" style=\"color:#000060\"><strong>Nitrogen Fixation by Lightning<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"512\" height=\"512\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-77.png\" alt=\"\" class=\"wp-image-18577\" style=\"width:352px;height:auto\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-77.png 512w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-77-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-77-150x150.png 150w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2024\/11\/image-77-400x400.png 400w\" sizes=\"auto, (max-width: 512px) 100vw, 512px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">During thunderstorms, the high energy from lightning converts atmospheric nitrogen into nitrogen oxides, which dissolve in rainwater and form nitrates that plants can absorb.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-bf77e842b405c0b5fc62ec36cb741603\" style=\"color:#000060\"><strong>Significance of Nitrogen Fixation<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">Nitrogen fixation enriches the soil with nutrients, helping plants grow healthier. This process is crucial in agriculture to ensure better crop yields.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-c0663111bb0a2a7b5e3b92974eae48b1\" style=\"color:#000060\"><strong>Human Impact<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li>Excessive use of nitrogen-based fertilizers can lead to environmental issues like water pollution (eutrophication) and soil degradation.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!<\/strong><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/75881\/945\/158\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-51.png\" alt=\"\" class=\"wp-image-7583\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-51.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-51-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-2-51-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/wordwall.net\/play\/75914\/992\/896\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-50.png\" alt=\"\" class=\"wp-image-7584\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-50.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-50-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Worksheet-1-1-1-50-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Nitrogen Fixation nitrogen fixation by Delta publications key notes :- What is Nitrogen Fixation? Importance of Nitrogen Atmospheric Nitrogen Types of Nitrogen Fixation Role of Nitrogen-Fixing Bacteria Symbiotic Nitrogen Fixation Non-Symbiotic Nitrogen Fixation Nitrogen Fixation by Lightning Significance of Nitrogen Fixation Human Impact Let&#8217;s practice!<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-3835","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"_links":{"self":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3835","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=3835"}],"version-history":[{"count":24,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3835\/revisions"}],"predecessor-version":[{"id":21302,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/3835\/revisions\/21302"}],"wp:attachment":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=3835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}