Biology NCERT Changes 2025-2026: What Students NEED To Know: The NCERT has introduced some changes to the Biology textbooks for classes 11 and 12, which form the foundation of the NEET Biology syllabus for 2026. These changes focus on correcting inaccuracies in content and diagrams to ensure greater precision and clarity. The chapters of the NCERT Biology 2025-2026 syllabus are similar to those of 2024.
These revisions aim to enhance conceptual understanding and accuracy for NEET aspirants. To strengthen exam preparation, students must refer to the revised edition of the NCERT Biology textbook.
Biology NCERT Changes 2025-2026 Highlights
NCERT has made certain corrections to the class 11 and class 12 Biology chapters. The following presents key highlights of Biology NCERT changes 2025-2026:
Biology NCERT Changes 2025-2026 Highlights |
|
Chapter |
Details |
Cell - The Unit of Life |
Theodor Schwann's nationality changed to German. |
Chemical Coordination and Integration |
Adrenal Gland positioning changed to suprarenal gland. |
Biotechnology |
Grammatical rectifications. |
Locomotion and Movement |
Hyoid has been excluded from the skull. |
Respiration in Plants |
2H+ replaced with 4H+ in the diagram of ATP synthesis in mitochondria. |
Detailed Biology NCERT Changes 2025-2026
Knowing these changes is crucial for strengthening preparation and increasing accuracy during the board and NEET exams. Presented below is the detailed explanation of changes in the Biology NCERT 2025-2026 textbook:
Theodor Schwann's Nationality Correction
Earlier, the class 11 NCERT Biology textbook incorrectly mentioned Theodor Schwann, the renowned physiologist who co-founded cell theory, as a British national. This has now been rectified, reflecting his actual German nationality.
Adrenal Gland Positioning Update
The latest class 11 NCERT textbook rectifies the positioning of the adrenal gland in the chapter Chemical Coordination and Integration. Previously, it was described as being anterior to the kidneys, which is anatomically inaccurate. The latest edition correctly identifies this gland as suprarenal, emphasising its actual location above the kidneys.
Grammatical Improvements in Biotechnology
Several minor grammatical errors in the class 12 Biology chapter, Biotechnology, have been addressed. These rectifications don’t affect the conceptual meaning. However, through these minor changes, NCERT aims to ensure more precise and accurate language for explaining scientific concepts.
Exclusion of Hyoid Bone from Skull
In the class 11 Biology chapter “Locomotion and Movement”, the hyoid bone has been excluded from the skull section. This correction presents the accurate human anatomy by explaining that the hyoid is not directly part of the skull but a unique, independent bone supporting the tongue and associated muscles.
Correction in ATP Synthesis Diagram
A critical rectification has been made in the ATP synthesis diagram within the mitochondria section. The earlier edition inaccurately presented 2H+ (hydrogen ions) passing through the F0 subunit of the ATP synthesis for ATP production. The corrected version now accurately shows 4H+ ions, reflecting the correct proton required for ATP synthesis.
Biology NCERT 2025-2026 Syllabus
Here are the chapter candidates must cover in class 11 and 12 NEET 2026 Biology based on the revised NCERT syllabus:
Biology NCERT 2025-2026 |
||
Class |
Unit Name |
Chapters (Class 11) |
11 |
Diversity of Living Organisms |
The Living World |
Biological Classification |
||
Plant Kingdom |
||
Animal Kingdom |
||
Structural Organization in Plants and Animals |
Morphology of Flowering Plants |
|
Anatomy of Flowering Plants |
||
Structural Organisation in Animals |
||
Cell: Structure and Function |
Cell - The Unit of Life |
|
Biomolecules |
||
Cell Cycle and Cell Division |
||
Plant Physiology |
Photosynthesis in Higher Plants |
|
Respiration in Plants |
||
Plant Growth and Development |
||
Human Physiology |
Breathing and Exchange of Gases |
|
Body Fluids and Circulation |
||
Excretory Products and their Elimination |
||
Locomotion and Movement |
||
Neural Control and Coordination |
||
Chemical Coordination and Integration |
||
12 |
Reproduction |
Sexual Reproduction in Flowering Plants |
Human Reproduction |
||
Reproductive Health |
||
Genetics and Evolution |
Principles of Inheritance and Variation |
|
Molecular Basis of Inheritance |
||
Evolution |
||
Biology and Human Welfare |
Human Health and Disease |
|
Microbes in Human Welfare |
||
Biotechnology and its Applications |
Biotechnology - Principles and Processes |
|
Biotechnology and its Applications |
||
Ecology and Environment |
Organisms and Populations |
|
Ecosystem |
||
Biodiversity and its Conservation |
Biology NCERT Changes 2025-2026 FAQs
Q1. Is NCERT enough for NEET Biology 2026
Ans. NCERT Biology explains all the concepts covered in the NEET syllabus. Students must start their NEET preparation with the NCERT textbook. However, to improve problem-solving skills, it is recommended to use reference books that align with the NCERT syllabus.
Q2. What is the Biology portion of NEET 2026?
Ans. NEET 2025 Biology portion includes all the chapters of class 11 and 12, Zoology and Botany subjects.
Q3. What is the weightage of Zoology in NEET 2026?
Ans. Both Zoology and Botany sections carry equal weightage in the NEET exam.
Q4. How can I access revisions in NEET Biology?
Ans. Candidates can check NEET Biology revisions by referring to the revised edition of NCERT.
Q5. How many chapters are there in NEET Biology 2026?
Ans. NEET Biology 2026 has a total of 32 chapters. This includes 19 chapters in class 11 and 13 chapters in class 12.