NEET Biology notes

All 32 NCERT Class 11 & 12 chapters — diversity of life, cell biology, plant and human physiology, genetics, evolution, biotechnology and ecology. Each chapter is split into topics with key points, formulas, memory tricks and the NEET questions asked from it.

chapters
32
chapters
Class 11
19
Class 11
Class 12
13
Class 12
topics
203
topics
PYQs
2,027
PYQs

Biology Class 1119 chapters

Biology Class 1213 chapters

Revise these first

Most-asked Biology chapters in NEET

Ranked by the previous-year questions in our bank. Strong marks in these chapters go a long way.

  1. 1Structural Organisation in Animals135 PYQs
  2. 2Principles of Inheritance and Variation133 PYQs
  3. 3Cell: The Unit of Life119 PYQs
  4. 4Ecosystem111 PYQs
  5. 5Photosynthesis in Higher Plants107 PYQs
  6. 6The Living World103 PYQs

FAQ

NEET Biology: common questions

How many Biology chapters are there for NEET?

NEET Biology covers 32 NCERT chapters — 19 from Class 11 and 13 from Class 12. All of them have free notes here.

Which Biology chapters have the most NEET questions?

By previous-year questions in our bank: Structural Organisation in Animals (135), Principles of Inheritance and Variation (133), Cell: The Unit of Life (119). Use the PYQ count on each chapter to decide what to revise first.

Are the NEET Biology notes free?

Yes. Every chapter page is free to read without an account. A free account opens the rest of each chapter — all formulas, diagrams and tables — and tracks the topics you finish.

Finish Biology, one topic at a time

A free account opens every formula, diagram and table, and remembers which topics you have finished.

  • Free to start
  • Progress saved per topic
  • PYQ practice by chapter