{"id":4067,"date":"2026-03-31T10:19:02","date_gmt":"2026-03-31T10:19:02","guid":{"rendered":"https:\/\/ksquareinstitute.in\/blog\/?p=4067"},"modified":"2026-04-03T12:52:14","modified_gmt":"2026-04-03T12:52:14","slug":"cell-cycle-and-division-class-11-notes","status":"publish","type":"post","link":"https:\/\/ksquareinstitute.in\/blog\/cell-cycle-and-division-class-11-notes\/","title":{"rendered":"Cell Cycle and Division Class 11 Notes: Ultimate NEET Revision Guide"},"content":{"rendered":"\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n    <meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n    <link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n    <link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300..600;1,9..40,300..600&#038;family=JetBrains+Mono:wght@400;500;700&#038;family=Plus+Jakarta+Sans:wght@400;600;700;800&#038;display=swap\" rel=\"stylesheet\">\n    <style>\n        :root {\n            --accent: #e8600a;\n            --accent-light: #fff3ec;\n            --accent-mid: #fde3cc;\n            --dark: #111827;\n            --text: #1a1a1a;\n            --text-muted: #4b5563;\n            --border: #e5e7eb;\n            --green-bg: #f0fdf4;\n            --green-border: #16a34a;\n            --blue-bg: #eff6ff;\n            --blue-border: #3b82f6;\n        }\n\n        * { box-sizing: border-box; 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color: white; display: inline-flex; align-items: center; gap: 10px; padding: 12px 24px; border-radius: 8px; text-decoration: none; font-weight: 600; margin-top: 20px; }\n    <\/style>\n<\/head>\n<body>\n\n<div class=\"content-wrapper\">\n    <div class=\"container\">\n\n\n        <h2><div class=\"badge\">01<\/div><span>Introduction to the Cell Cycle<\/span><\/h2>\n        \n        <p>Mastering the <strong>cell cycle and division class 11 notes<\/strong> is a critical milestone for any NEET aspirant. Every living organism, whether large or small, begins life as a single cell. The ability of this cell to replicate its genetic material and split into daughter cells is what facilitates growth, tissue repair, and reproduction. The cell cycle is the sequence of events by which a cell duplicates its genome, synthesizes other constituents, and eventually divides into two daughter cells.<\/p>\n\n        <p>While cell growth (in terms of cytoplasmic increase) is a continuous process, DNA synthesis occurs only during one specific stage of the cycle. These coordinated events are under strict genetic control to ensure that daughter cells inherit complete and accurate copies of the genome. In this guide, we break down the complexities of Interphase and M-phase to boost your conceptual clarity for NEET Biology.<\/p>\n\n        <div class=\"card-grid\">\n            <div class=\"card\">\n                <span class=\"card-title\">INTERPHASE<\/span>\n                The preparation phase where the cell grows and replicates its DNA. Occupies over 95% of the total cycle duration.\n            <\/div>\n            <div class=\"card\">\n                <span class=\"card-title\">M PHASE<\/span>\n                The actual division phase where the cell splits its nucleus (Karyokinesis) and cytoplasm (Cytokinesis).\n            <\/div>\n        <\/div>\n\n        <h2><div class=\"badge\">02<\/div><span><span>Interphase: The Preparation Stage<\/span><\/span><\/h2>\n        <p>Interphase is often erroneously called the &#8220;resting phase,&#8221; but it is actually the period of most intense metabolic activity. The cell grows and performs various synthesis tasks divided into three distinct sub-stages: G<sub>1<\/sub>, S, and G<sub>2<\/sub>.<\/p>\n\n        <div class=\"table-container\">\n            <table>\n                <thead>\n                    <tr>\n                        <th>Phase<\/th>\n                        <th>Event Name<\/th>\n                        <th>Key Physiological Activities<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>G<sub>1<\/sub> Phase<\/td>\n                        <td>Gap 1<\/td>\n                        <td>Active growth, synthesis of proteins and RNA; cell prepares for DNA replication.<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>S Phase<\/td>\n                        <td>Synthesis<\/td>\n                        <td>DNA replication occurs; DNA content doubles (2C &rarr; 4C), but chromosome number stays same.<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>G<sub>2<\/sub> Phase<\/td>\n                        <td>Gap 2<\/td>\n                        <td>Synthesis of tubulin protein for spindle fibers; cell growth continues.<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>G<sub>0<\/sub> Phase<\/td>\n                        <td>Quiescent<\/td>\n                        <td>Inactive stage where cells exit cycle but remain metabolically active (e.g., Heart cells).<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n\n        <div class=\"formula-dark\">\n            <span class=\"formula-dark-label\">DNA CONTENT VS CHROMOSOME NUMBER<\/span>\n            <div class=\"formula-dark-content\">If initial number is 2n and content is 2C: <br> After S phase &rarr; Number = 2n | Content = 4C.<\/div>\n        <\/div>\n\n        <!-- Promotional Banner 1 -->\n        <a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/3-mission-180-neet-physics-rankers-batch\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" style=\"display:block; margin-bottom:40px;\">\n          <img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/03\/Course-Poromo-Banner-scaled.png\" alt=\"Mission 180 NEET Physics Rankers Batch - KSquare Career Institute\" style=\"width:100%; height:auto; border-radius:10px; display:block;\">\n        <\/a>\n\n        <h2><div class=\"badge\">03<\/div><span><span>Mitosis: The Equational Division<\/span><\/span><\/h2>\n        <p>Mitosis occurs in diploid somatic cells and is called &#8220;equational division&#8221; because the daughter cells inherit the same number of chromosomes as the parent cell. This phase is divided into four stages of nuclear division: Prophase, Metaphase, Anaphase, and Telophase.<\/p>\n\n        <h3>Stages of Mitosis Breakdown<\/h3>\n        <ul>\n            <li><strong>Prophase:<\/strong> Chromosomal material condenses; centrioles move to poles; nuclear envelope and nucleolus disappear.<\/li>\n            <li><strong>Metaphase:<\/strong> Spindle fibers attach to <strong>kinetochores<\/strong> of centromeres; chromosomes align at the equatorial (metaphase) plate.<\/li>\n            <li><strong>Anaphase:<\/strong> Centromeres split and sister chromatids separate, moving toward opposite poles.<\/li>\n            <li><strong>Telophase:<\/strong> Chromosomes decondense; nuclear envelope and nucleolus reappear; two daughter nuclei are formed.<\/li>\n        <\/ul>\n\n        <div class=\"callout tip\">\n            <div class=\"callout-pill\">TIP<\/div>\n            Metaphase is the best stage to study the morphology of chromosomes because they are shortest and most distinctly visible under a microscope.\n        <\/div>\n\n        <h2><div class=\"badge\">04<\/div><span><span>Cytokinesis: Dividing the Cytoplasm<\/span><\/span><\/h2>\n        <p>The division of the nucleus (Karyokinesis) is followed by the division of the cytoplasm (Cytokinesis). The mechanism differs significantly between animal and plant cells due to the presence of the cell wall.<\/p>\n\n        <div class=\"card-grid\">\n            <div class=\"card\">\n                <span class=\"card-title\">ANIMAL CELLS<\/span>\n                Division occurs by the formation of a <strong>Cleavage Furrow<\/strong> that deepens from the outside toward the center (centripetal).\n            <\/div>\n            <div class=\"card\">\n                <span class=\"card-title\">PLANT CELLS<\/span>\n                Division occurs by the formation of a <strong>Cell Plate<\/strong> that grows from the center toward the outside (centrifugal).\n            <\/div>\n        <\/div>\n\n        <h2><div class=\"badge\">05<\/div><span><span>Meiosis: The Reduction Division<\/span><\/span><\/h2>\n        <p>Meiosis ensures the production of haploid gametes in sexual reproduction. It involves two sequential cycles of nuclear and cell division (Meiosis I and Meiosis II) but only a single cycle of DNA replication. It is termed &#8220;reductional division&#8221; as the chromosome number is halved.<\/p>\n\n        <div class=\"formula-orange\">\n            <span class=\"formula-orange-label\">MEIOSIS OUTCOME<\/span>\n            <div class=\"formula-orange-content\">1 Diploid Parent (2n) &rarr; 4 Haploid Daughter Cells (n)<\/div>\n        <\/div>\n\n        <h3>Meiosis I: Prophase I Sub-stages<\/h3>\n        <p>Prophase I is exceptionally long and complex. In your <strong>cell cycle and division class 11 notes<\/strong>, this is the most frequently tested section. It is divided into five stages based on chromosomal behavior:<\/p>\n\n        <div class=\"table-container\">\n            <table>\n                <thead>\n                    <tr>\n                        <th>Stage<\/th>\n                        <th>Key Biological Event<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>Leptotene<\/td>\n                        <td>Chromosomes become visible under light microscope; condensation begins.<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Zygotene<\/td>\n                        <td><strong>Synapsis<\/strong> occurs; formation of Synaptonemal Complex and Bivalents.<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Pachytene<\/td>\n                        <td><strong>Crossing Over<\/strong> (Recombination) between non-sister chromatids of homologous chromosomes.<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Diplotene<\/td>\n                        <td>Dissolution of complex; X-shaped structures called **Chiasmata** become visible.<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Diakinesis<\/td>\n                        <td>Terminalization of chiasmata; spindle assembly; nuclear membrane breakdown.<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n\n        <div class=\"callout warning\">\n            <div class=\"callout-pill\">WARN<\/div>\n            Crossing over is mediated by the enzyme <strong>Recombinase<\/strong>. It is responsible for genetic variation, which is the raw material for evolution.\n        <\/div>\n\n        <!-- Promotional Banner 2 -->\n        <a href=\"https:\/\/ksquareinstitute.in\/neet-2026-rank-predictor\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" style=\"display:block; margin-bottom:40px;\">\n          <img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/03\/neet-2026-college-and-rank-predictor-scaled.png\" alt=\"NEET 2026 Rank Predictor - KSquare Career Institute\" style=\"width:100%; height:auto; border-radius:10px; display:block;\">\n        <\/a>\n\n        <h2><div class=\"badge\">06<\/div><span><span>Comparison: Mitosis vs Meiosis<\/span><\/span><\/h2>\n        <p>Understanding the fundamental differences between the two division types is vital for solving comparative questions in the <strong>cell cycle and division class 11 notes<\/strong>.<\/p>\n        \n        <div class=\"table-container\">\n            <table>\n                <thead>\n                    <tr>\n                        <th>Feature<\/th>\n                        <th>Mitosis<\/th>\n                        <th>Meiosis<\/th>\n                    <\/tr>\n                <\/thead>\n                <tbody>\n                    <tr>\n                        <td>Cell Type<\/td>\n                        <td>Somatic Cells<\/td>\n                        <td>Germ Cells (Gametes)<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>No. of Divisions<\/td>\n                        <td>One<\/td>\n                        <td>Two (I and II)<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Daughter Cells<\/td>\n                        <td>Two (Diploid)<\/td>\n                        <td>Four (Haploid)<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Variation<\/td>\n                        <td>Absent (Clones)<\/td>\n                        <td>Present (due to Crossing Over)<\/td>\n                    <\/tr>\n                    <tr>\n                        <td>Function<\/td>\n                        <td>Growth, Repair, Asexual<\/td>\n                        <td>Sexual Reproduction<\/td>\n                    <\/tr>\n                <\/tbody>\n            <\/table>\n        <\/div>\n\n        <h2><div class=\"badge\">07<\/div><span><span>Significance of Cell Division<\/span><\/span><\/h2>\n        <p>Why do cells divide? Beyond just making more cells, division serves specific evolutionary and physiological roles. In the context of your <strong>cell cycle and division class 11 notes<\/strong>, focus on these three pillars:<\/p>\n\n        <div class=\"card-grid\">\n            <div class=\"card\">\n                <span class=\"card-title\">CELL REPAIR<\/span>\n                Constant replacement of cells in the skin, gut lining, and blood cells depends on mitosis.\n            <\/div>\n            <div class=\"card\">\n                <span class=\"card-title\">EVOLUTION<\/span>\n                Meiosis increases genetic diversity through recombination, allowing populations to adapt to changing environments.\n            <\/div>\n        <\/div>\n\n        <div class=\"internal-links\">\n            <span class=\"internal-links-title\">ENHANCE YOUR NEET PREPARATION<\/span>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/neet-physics-survival-kit-2026\/\">NEET Physics Survival Kit 2026<\/a>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/organic-chemistry-strategy-neet\/\">Organic Chemistry Strategy for NEET<\/a>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/neet-biology-tricks-for-exams\/\">Biology Mnemonics &#038; Tricks<\/a>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/score-340-in-neet-biology\/\">How to Score 340 in NEET Biology<\/a>\n            <a href=\"https:\/\/ksquareinstitute.in\/blog\/top-10-tricky-neet-biology-diagrams\/\">Top 10 Tricky Biology Diagrams<\/a>\n            <a href=\"https:\/\/ksquareinstitute.in\/free-study-material\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Free NEET Study Material<\/a>\n        <\/div>\n\n        <div class=\"revision-box\">\n            <h3>Quick Revision Summary<\/h3>\n            <ul>\n                <li><strong>G<sub>1<\/sub> Phase:<\/strong> Interval between mitosis and DNA replication.<\/li>\n                <li><strong>S Phase:<\/strong> DNA doubles, but chromosome number stays 2n.<\/li>\n                <li><strong>Centriole:<\/strong> Duplicates in the cytoplasm during S phase.<\/li>\n                <li><strong>Kinetochores:<\/strong> Disc-shaped structures on centromeres for spindle attachment.<\/li>\n                <li><strong>Syncytium:<\/strong> Multicucleate condition formed when karyokinesis is not followed by cytokinesis (e.g., Liquid endosperm in coconut).<\/li>\n                <li><strong>Pachytene:<\/strong> Stage where recombination nodules appear.<\/li>\n                <li><strong>Interkinesis:<\/strong> Short-lived stage between Meiosis I and II; NO DNA replication.<\/li>\n                <li><strong>Anaphase I:<\/strong> Homologous chromosomes separate; sister chromatids stay together.<\/li>\n                <li><strong>Anaphase II:<\/strong> Sister chromatids separate.<\/li>\n                <li><strong>Meiosis II:<\/strong> Essentially an equational division like mitosis.<\/li>\n            <\/ul>\n            <a href=\"#\" class=\"download-btn\" rel=\"nofollow noopener noreferrer\">\n                <span>Download Cell Division Notes (PDF)<\/span>\n            <\/a>\n        <\/div>\n\n        <h2><div class=\"badge\">08<\/div><span><span>Frequently Asked Questions<\/span><\/span><\/h2>\n        <div class=\"faq-container\">\n            <details>\n                <summary>\n                    <span>What is the difference between chromosome and chromatid?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">A chromosome is a single DNA molecule. After the S phase, the chromosome replicates, resulting in two identical DNA strands held together by a centromere; these identical strands are called sister chromatids. They become individual chromosomes again during anaphase.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>Why is Meiosis called reductional division?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">It is called reductional because it reduces the number of chromosomes by half (from 2n to n). This ensures that when two gametes fuse during fertilization, the resulting zygote has the correct diploid number of chromosomes.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>What happens during the G<sub>0<\/sub> stage?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">Cells that do not divide further exit the G<sub>1<\/sub> phase to enter an inactive stage called G<sub>0<\/sub> (Quiescent stage). These cells remain metabolically active but no longer proliferate unless called upon depending on the needs of the organism.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>Explain the significance of Crossing Over.<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">Crossing over involves the exchange of genetic material between non-sister chromatids of homologous chromosomes. This leads to new combinations of genes (recombinations), which result in variations among offspring, driving evolution.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>How does cytokinesis in plants differ from animals?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">In animal cells, cytokinesis occurs centripetally through the constriction of a cleavage furrow. In plant cells, cytokinesis is centrifugal; it begins in the center of the cell with the formation of a cell plate that grows outward to join the existing lateral cell walls.<\/div>\n            <\/details>\n            <details>\n                <summary>\n                    <span>What is a tetrad in meiosis?<\/span>\n                    <div class=\"toggle-icon\">\n                        <svg viewBox=\"0 0 24 24\"><path class=\"plus-path\" d=\"M12 5v14M5 12h14\"\/><path class=\"minus-path\" d=\"M5 12h14\"\/><\/svg>\n                    <\/div>\n                <\/summary>\n                <div class=\"faq-answer\">During the pachytene stage of Prophase I, the four chromatids of a pair of homologous chromosomes become clearly visible as a group of four. This four-chromatid structure is known as a tetrad.<\/div>\n            <\/details>\n        <\/div>\n\n        <div class=\"cta-section\">\n            <h2>Accelerate Your NEET ranking with KSquare<\/h2>\n            <p>Mastering the <strong>cell cycle and division class 11 notes<\/strong> is a cornerstone of medical entrance success. Join KSquare Institute&#8217;s Mission 180 Rankers Batch for expert-led modules, high-yield practice sessions, and 24\/7 doubt resolution to secure your seat.<\/p>\n            <div class=\"cta-buttons\">\n                <a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/3-mission-180-neet-physics-rankers-batch\" class=\"btn btn-white\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Join Rankers Batch<\/a>\n                <a href=\"https:\/\/ksquareinstitute.in\/free-study-material\/\" class=\"btn btn-outline\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Get Free Study Material<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/body>\n<\/html>\n\n\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n  <meta charset=\"UTF-8\">\n  <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n  <title>Table of Contents \u2014 Biology Class 11<\/title>\n  \n  <!-- Google Fonts Import -->\n  <link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n  <link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n  <link href=\"https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,100..1000;1,9..40,100..1000&#038;family=Plus+Jakarta+Sans:ital,wght@0,200..800;1,200..800&#038;display=swap\" rel=\"stylesheet\">\n  \n  <style>\n    \/* Scoped wrapper using a unique ID (#biology-toc-wrapper).\n       Ensures zero CSS leakage and full width edge-to-edge layout.\n    *\/\n    #biology-toc-wrapper {\n      font-family: 'DM Sans', sans-serif;\n      width: 100%;\n      margin: 0;\n      padding: 60px 0;\n      color: #111;\n      background: #fff;\n      -webkit-font-smoothing: antialiased;\n    }\n\n    #biology-toc-wrapper .container-inner {\n      width: 100%;\n      margin: 0 auto;\n      padding: 0; \n    }\n\n    #biology-toc-wrapper h1 {\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 0.85rem;\n      font-weight: 700;\n      color: #71717a;\n      margin: 0 0 8px;\n      letter-spacing: 0.1em;\n      text-transform: uppercase;\n      padding-left: 16px; \n    }\n\n    #biology-toc-wrapper h2 {\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 2.25rem;\n      font-weight: 800;\n      margin: 0 0 48px;\n      letter-spacing: -0.02em;\n      color: #09090b;\n      padding-left: 16px;\n    }\n\n    #biology-toc-wrapper table {\n      width: 100%;\n      border-collapse: collapse;\n      border-spacing: 0;\n      border-top: 1px solid #e4e4e7;\n      border-bottom: 1px solid #e4e4e7;\n    }\n\n    #biology-toc-wrapper tr {\n      border-bottom: 1px solid #e4e4e7;\n      transition: all 0.2s ease;\n    }\n\n    #biology-toc-wrapper tr:hover {\n      background-color: #f8fafc;\n    }\n\n    #biology-toc-wrapper tr:last-child {\n      border-bottom: none;\n    }\n\n    #biology-toc-wrapper td {\n      padding: 24px 16px;\n      vertical-align: middle;\n      font-size: 1.05rem;\n      font-weight: 500;\n      border-right: 1px solid #e4e4e7;\n    }\n\n    #biology-toc-wrapper td:last-child {\n      border-right: none;\n    }\n\n    \/* Column 1: Index Numbers *\/\n    #biology-toc-wrapper td:first-child {\n      color: #a1a1aa;\n      font-size: 0.9rem;\n      width: 70px;\n      font-weight: 400;\n      font-variant-numeric: tabular-nums;\n      text-align: center;\n      padding-left: 10px;\n    }\n\n    \/* Column 2: Chapter Titles *\/\n    #biology-toc-wrapper td:nth-child(2) {\n      padding-left: 32px; \n      color: #18181b;\n    }\n\n    \/* Column 3: Action Button *\/\n    #biology-toc-wrapper td:last-child {\n      text-align: right;\n      width: 180px;\n      padding-right: 24px; \n    }\n\n    \/* Premium Button Styling *\/\n    #biology-toc-wrapper a.go {\n      display: inline-block;\n      font-family: 'Plus Jakarta Sans', sans-serif;\n      font-size: 0.75rem;\n      font-weight: 800;\n      padding: 12px 24px;\n      border: 1.5px solid #18181b;\n      border-radius: 8px;\n      color: #18181b;\n      text-decoration: none;\n      letter-spacing: 0.05em;\n      text-transform: uppercase;\n      transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);\n      white-space: nowrap;\n    }\n\n    #biology-toc-wrapper a.go:hover {\n      background: #18181b;\n      color: #ffffff;\n      transform: translateY(-2px);\n      box-shadow: 0 4px 12px rgba(24, 24, 27, 0.15);\n    }\n\n    \/* Responsive adjustments *\/\n    @media (max-width: 768px) {\n      #biology-toc-wrapper h2 {\n        font-size: 1.75rem;\n        margin-bottom: 32px;\n        padding-left: 12px;\n      }\n      #biology-toc-wrapper td {\n        padding: 18px 12px;\n        font-size: 0.95rem;\n      }\n      #biology-toc-wrapper td:nth-child(2) {\n        padding-left: 16px;\n      }\n    }\n  <\/style>\n<\/head>\n<body>\n\n<div id=\"biology-toc-wrapper\">\n  <div class=\"container-inner\">\n    <h1>Table of Contents<\/h1>\n    <h2>Biology &mdash; Class 11<\/h2>\n    \n    <table>\n      <tr><td>01<\/td><td>The Living World<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/the-living-world-class-11-biology-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>02<\/td><td>Biological Classification<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/biological-classification-class-11-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>03<\/td><td>Plant Kingdom<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/plant-kingdom-class-11-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>04<\/td><td>Animal Kingdom<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/animal-kingdom-class-11-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>05<\/td><td>Morphology of Flowering Plants<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/morphology-of-flowering-plants-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>06<\/td><td>Anatomy of Flowering Plants<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/anatomy-of-flowering-plants-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>07<\/td><td>Structural Organisation in Animals<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/structural-organisation-in-animals-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>08<\/td><td>Cell: The Unit of Life<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/cell-the-unit-of-life-class-11-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>09<\/td><td>Biomolecules<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/biomolecules-class-11-biology-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>10<\/td><td>Cell Cycle and Cell Division<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/cell-cycle-and-division-class-11-notes\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>11<\/td><td>Photosynthesis in Higher Plants<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/photosynthesis-in-higher-plants-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>12<\/td><td>Respiration in Plants<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/respiration-in-plants-class-11-notes-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>13<\/td><td>Plant Growth and Development<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/plant-growth-and-development-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>14<\/td><td>Breathing and Exchange of Gases<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/breathing-and-exchange-of-gases-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>15<\/td><td>Body Fluids and Circulation<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/body-fluids-and-circulation-class-11-pdf\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>16<\/td><td>Excretory Products and their Elimination<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/excretory-products-and-elimination-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>17<\/td><td>Locomotion and Movement<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/locomotion-and-movement-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>18<\/td><td>Neural Control and Coordination<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/neural-control-and-coordination-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n      <tr><td>19<\/td><td>Chemical Coordination and Integration<\/td><td><a class=\"go\" href=\"https:\/\/ksquareinstitute.in\/blog\/chemical-coordination-and-integration-class-11\" target=\"_blank\">Go to page<\/a><\/td><\/tr>\n    <\/table>\n  <\/div>\n<\/div>\n\n<\/body>\n<\/html>\n","protected":false},"excerpt":{"rendered":"<p>01 Introduction to the Cell Cycle Mastering the cell cycle and division class 11 notes is a critical milestone for any NEET aspirant. Every living organism, whether large or small, begins life as a single cell. The ability of this cell to replicate its genetic material and split into daughter cells is what facilitates growth, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[127],"tags":[431,428,430,429,432],"class_list":["post-4067","post","type-post","status-publish","format-standard","hentry","category-free-study-material","tag-biology-class-11-notes","tag-cell-cycle-class-11","tag-cell-division-notes","tag-mitosis-meiosis-class-11","tag-neet-biology-cell-cycle"],"blocksy_meta":{"page_structure_type":"type-1","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/comments?post=4067"}],"version-history":[{"count":2,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4067\/revisions"}],"predecessor-version":[{"id":4262,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/4067\/revisions\/4262"}],"wp:attachment":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media?parent=4067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/categories?post=4067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/tags?post=4067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}