NEET UG 2025 Exam Biology Most Important Topics & Chapter-wise Weightage

The NMC has released the NEET UG 2025 syllabus, with Biology contributing 50% of total marks. Prioritize high-weightage chapters in Botany and Zoology.

NEW DELHI: The National Testing Agency (NTA) will soon announce the NEET UG 2025 exam date. Before the registration process begins, the NTA has confirmed that the exam will take place in pen-and-paper mode in a single shift. In December, the National Medical Commission (NMC) released the subject-wise NEET UG 2025 syllabus for Biology, Chemistry, and Physics. To crack NEET, candidates must follow the latest curriculum, analyze the weightage of each topic, and plan their studies accordingly.

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Biology: Most Important Topics for NEET 2025

Since Biology plays a crucial role in determining a candidate’s overall NEET score, aspirants should concentrate on key chapters with higher weightage. Some of the most important topics include:

Class 11 (Botany & Zoology)

  • Diversity of the Living World
  • Structural Organization in Animals and Plants
  • Cell Structure and Function
  • Plant Physiology
  • Human Physiology

Class 12 (Botany & Zoology)

  • Reproduction in Organisms
  • Genetics and Evolution
  • Biology and Human Welfare
  • Biotechnology and Its Applications
  • Ecology and Environment

NEET Biology Chapter wise Weightage

The NEET exam has a total score of 720, with the Biology section contributing 360 marks, making up half of the total. This section consists of 90 questions, evenly divided into 45 questions for Botany and 45 for Zoology.

Biology Chapters and TopicsAverage Number of Questions Weightage(%)
Botany
Genetics and Evolution1525%
Ecology and Environment1016%
Plant Physiology814%
Plant Diversity712%
Cell Structure & Function610%
Plant Reproduction59%
Morphology of Flowering Plants47%
Plant Anatomy24%
Bio-molecule23%
Total100%
Zoology
Human Physiology1345%
Human Reproduction & Reproductive Health516%
Animal Kingdom310%
Origin & Evolution310%
Human Health & Diseases39% 
Structural Organization in Animals25%
Animal husbandry13%
Biology and Human Welfare12%
Total100%

Effective Study Strategies for NEET 2025

  • Master NCERT Books – Nearly 90% of NEET questions are NCERT-based.
  • Analyze Past Papers – Identify trends and chapter-wise weightage.
  • Take Mock Tests – Improve speed, accuracy, and confidence.
  • Strengthen Weak Areas – Revise and practice consistently.
  • Follow a Study Schedule – Ensure balanced preparation across subjects.
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About Samayra Roy

Samayra is an educational news writer at Edufever, specializing in entrance exams, admissions, scholarships, and updates on education policy changes. With a passion for empowering students and educators, she delivers accurate and engaging updates to keep readers informed about the latest trends in education.

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