{"id":51343,"date":"2022-01-18T10:30:38","date_gmt":"2022-01-18T05:00:38","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=51343"},"modified":"2025-07-31T17:41:51","modified_gmt":"2025-07-31T12:11:51","slug":"ncert-solutions-for-class-12-biology-chapter-14-ecosystem-14-7-nutrient-cycling","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/","title":{"rendered":"NCERT Solutions for Class 12 Biology Chapter 14 Ecosystem 14.7 Nutrient Cycling"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#NCERT_Solutions_for_Class_12_Biology_Chapter_14_Topic-_Nutrient_Cycling\" title=\"NCERT Solutions for Class 12 Biology Chapter 14 Topic- Nutrient Cycling\">NCERT Solutions for Class 12 Biology Chapter 14 Topic- Nutrient Cycling<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#Overview_of_Topics\" title=\"Overview of Topics\">Overview of Topics<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#Nutrient_Cycles_Examples\" title=\"Nutrient Cycles Examples\">Nutrient Cycles Examples<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#Carbon_Cycle\" title=\"Carbon Cycle\">Carbon Cycle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#Nitrogen_Cycle\" title=\"Nitrogen Cycle\">Nitrogen Cycle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#Oxygen_Cycle\" title=\"Oxygen Cycle\">Oxygen Cycle<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#Water_cycle\" title=\"Water cycle\">Water cycle<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#FAQs_on_NCERT_Solutions_for_Class_12_Biology_Chapter_14_Ecosystem_147_Nutrient_Cycling\" title=\"FAQs on NCERT Solutions for Class 12 Biology Chapter 14 Ecosystem 14.7 Nutrient Cycling\">FAQs on NCERT Solutions for Class 12 Biology Chapter 14 Ecosystem 14.7 Nutrient Cycling<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#What_are_the_4_main_nutrient_cycles\" title=\"What are the 4 main nutrient cycles?\">What are the 4 main nutrient cycles?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#What_is_cycle_nutrition\" title=\"What is cycle nutrition?\">What is cycle nutrition?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#What_is_nutrient_cycle_12th_biology\" title=\"What is nutrient cycle 12th biology?\">What is nutrient cycle 12th biology?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/chapter-14-ecosystem-14-7-nutrient-cycling\/#What_is_the_role_of_nutrient_cycling\" title=\"What is the role of nutrient cycling?\">What is the role of nutrient cycling?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"NCERT_Solutions_for_Class_12_Biology_Chapter_14_Topic-_Nutrient_Cycling\"><\/span>NCERT Solutions for Class 12 Biology Chapter 14 Topic- Nutrient Cycling<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>NCERT Solutions for Class 12 Biology Chapter 14 Topic- Nutrient Cycling<\/strong> and all chapter Topics produced by qualified teachers according to NCERT (CBSE) book rules are available as a free PDF download. Class 12 Biology Chapter 14 Topic- Nutrient Cycling Questions with Solutions to assist you in revising the entire syllabus and achieving higher grades. Register to receive all exercise solutions through email.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Overview_of_Topics\"><\/span>Overview of Topics<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A nutrient cycle is like a repeating journey that nutrients take to be reused. It involves cells, living things, groups of living things, and the environment.<\/p>\n<p>During this process, nutrients are taken in, moved around, released, and taken in again. It&#8217;s like nature&#8217;s way of recycling mineral nutrients. When plants and animals die and break down, the nutrients they took in are given back to the environment, keeping the cycle going.<\/p>\n<p>Tiny organisms in the soil, like microbes, are key players in this recycling. They break down dead stuff to release nutrients. They also help by capturing and changing nutrients into forms that plants can use. The speed at which nutrients move through this cycle depends on lots of things like living things, weather, and chemistry.<\/p>\n<p>Examples of this cycle include how carbon, nitrogen, water, and oxygen move around in nature.<\/p>\n<p><a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-12\/biology\/\"> <button class=\"btn btn-primary\" style=\"width: 100%; cursor: pointer;\" type=\"button\">NCERT Solutions for Class 12 Biology<\/button> <\/a><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Nutrient_Cycles_Examples\"><\/span>Nutrient Cycles Examples<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Nutrient recycling relies on both living and non-living parts of the environment. Non-living parts include air, water, and soil. Carbon, hydrogen, nitrogen, and oxygen are recycled in air, water, and soil, while calcium, phosphorus, potassium, and others are mainly recycled in soil and are found nearby.<\/p>\n<p><strong>The four primary nutrient cycles are:<\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Carbon_Cycle\"><\/span><a href=\"https:\/\/infinitylearn.com\/surge\/articles\/the-carbon-cycle\/\">Carbon Cycle<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Carbon is found in every living cell. It&#8217;s in organic matter and biomolecules too. In the air, carbon mostly exists as carbon dioxide and methane.<\/li>\n<li>Carbon moves back and forth between living things and the environment through photosynthesis and respiration. Plants use photosynthesis to take in carbon dioxide from the air. When living things breathe, they release carbon dioxide.<\/li>\n<li>Burning fossil fuels and car exhaust also release carbon into the air. When things die and break down, organic carbon gets released into the air too.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Nitrogen_Cycle\"><\/span><a href=\"https:\/\/infinitylearn.com\/surge\/biology\/nitrogen-cycle\/\">Nitrogen Cycle<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Nitrogen is crucial for life, but living things can&#8217;t use it directly. Instead, it needs to be changed into different forms.<\/li>\n<li>Nitrogen-fixing bacteria change atmospheric nitrogen into ammonia, and then nitrifying bacteria change it into nitrate, which plants can use. Lightning also helps turn atmospheric nitrogen into nitrates for plants to use.<\/li>\n<li>Decomposers break down dead organic matter, releasing nitrogen back into the soil.<\/li>\n<li>Denitrifying bacteria convert ammonia and nitrates back into nitrogen gas, which returns to the atmosphere.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Oxygen_Cycle\"><\/span><a href=\"https:\/\/infinitylearn.com\/surge\/articles\/the-oxygen-cycle\/\">Oxygen Cycle<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Oxygen is necessary for living things. Water creatures rely on oxygen dissolved in water. Oxygen helps break down natural waste.<\/li>\n<li>Plants mainly make the oxygen we breathe. Animals breathe in oxygen and release carbon dioxide, which plants use for making oxygen.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Water_cycle\"><\/span>Water cycle<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Water is crucial for life to thrive on our planet.<\/li>\n<li>When the sun heats up water from oceans, lakes, rivers, and other sources, it turns into vapor through evaporation and transpiration from plants. This vapor then cools down and forms droplets, falling back to earth as precipitation. The water that lands on the ground seeps into the soil, becoming groundwater. This process repeats continuously.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"FAQs_on_NCERT_Solutions_for_Class_12_Biology_Chapter_14_Ecosystem_147_Nutrient_Cycling\"><\/span>FAQs on NCERT Solutions for Class 12 Biology Chapter 14 Ecosystem 14.7 Nutrient Cycling<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_are_the_4_main_nutrient_cycles\"><\/span>What are the 4 main nutrient cycles?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tThe 4 Main Nutrient Cycles are Carbon Cycle, Nitrogen Cycle, Oxygen Cycle & Hydrologic Cycle\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_is_cycle_nutrition\"><\/span>What is cycle nutrition?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tCreate a plan for what you eat when cycling. Before you start, have something with protein and drink enough water. While cycling, eat foods with carbohydrates like energy bars. After you finish cycling, eat foods with both protein and carbohydrates to help your body recover, such as recovery bars, nuts, or dried f\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_is_nutrient_cycle_12th_biology\"><\/span>What is nutrient cycle 12th biology?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tNutrient cycling refers to the transfer of inorganic nutrients between living and non-living parts of the environment. When plants and animals die, decomposers break down their remains into basic nutrients.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"sc_fs_faq sc_card \">\n\t\t\t<div>\n\t\t\t\t<h3><span class=\"ez-toc-section\" id=\"What_is_the_role_of_nutrient_cycling\"><\/span>What is the role of nutrient cycling?<span class=\"ez-toc-section-end\"><\/span><\/h3>\t\t\t\t<div>\n\t\t\t\t\t\t\t\t\t\t<p>\n\t\t\t\t\t\tNutrient cycling is how nutrients move around in nature. It helps soil and the things living in it get the nutrients they need every day. There are different kinds of nutrient cycles that are important for keeping ecosystems healthy.\t\t\t\t\t<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/section>\n\t\t\n<script type=\"application\/ld+json\">\n\t{\n\t\t\"@context\": \"https:\/\/schema.org\",\n\t\t\"@type\": \"FAQPage\",\n\t\t\"mainEntity\": [\n\t\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What are the 4 main nutrient cycles?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"The 4 Main Nutrient Cycles are Carbon Cycle, Nitrogen Cycle, Oxygen Cycle &amp; Hydrologic Cycle\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is cycle nutrition?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Create a plan for what you eat when cycling. Before you start, have something with protein and drink enough water. While cycling, eat foods with carbohydrates like energy bars. After you finish cycling, eat foods with both protein and carbohydrates to help your body recover, such as recovery bars, nuts, or dried f\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is nutrient cycle 12th biology?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Nutrient cycling refers to the transfer of inorganic nutrients between living and non-living parts of the environment. When plants and animals die, decomposers break down their remains into basic nutrients.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t,\t\t\t\t{\n\t\t\t\t\"@type\": \"Question\",\n\t\t\t\t\"name\": \"What is the role of nutrient cycling?\",\n\t\t\t\t\"acceptedAnswer\": {\n\t\t\t\t\t\"@type\": \"Answer\",\n\t\t\t\t\t\"text\": \"Nutrient cycling is how nutrients move around in nature. It helps soil and the things living in it get the nutrients they need every day. There are different kinds of nutrient cycles that are important for keeping ecosystems healthy.\"\n\t\t\t\t\t\t\t\t\t}\n\t\t\t}\n\t\t\t\t\t\t]\n\t}\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>NCERT Solutions for Class 12 Biology Chapter 14 Topic- Nutrient Cycling NCERT Solutions for Class 12 Biology Chapter 14 Topic- [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"NCERT Solutions for class 12 Biology chapter 14 ecosystem 14.7 nutrient cycling","_yoast_wpseo_title":"NCERT Class 12 Biology Chapter 14 Ecosystem: Nutrient Cycling Solutions","_yoast_wpseo_metadesc":"Find comprehensive NCERT solutions for Class 12 Biology Chapter 14 on Ecosystem, covering nutrient cycling (14.7) and all key concepts for effective 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