Odisha Board Class 12 Biology Syllabus 2026-27
Exam scheme
Higher Secondary (+2), CHSE Odisha. Theory 70 + practical 30 = 100 marks. NCERT Biology textbooks for Class XI and XII.
Class 12 theory units (70 marks)
| Unit | Topic | Marks |
|---|---|---|
| VI | Reproduction — flowering plants and humans | 14 |
| VII | Genetics and evolution | 18 |
| VIII | Biology and human welfare | 14 |
| IX | Biotechnology and its applications | 10 |
| X | Ecology and environment | 14 |
Class XI (first year)
Diversity of living organisms; structural organisation; cell structure and function; plant physiology; human physiology.
Practical
Microscopy, specimen study, experiments on physiology and ecology; practical record and viva — 30 marks.
Prescribed from CHSE Odisha Biology syllabus (2023-24).
Make this syllabus useful
My revision checklist
Tick sections as you revise them. Progress is saved only in this browser on this device.
Original practice prompts
Use these with the official syllabus above—these are study prompts, not a claimed board question paper.
- Choose one listed section and explain its main ideas aloud without looking at notes.
- Write five questions you would ask from that section, then answer them from memory.
- Mark one topic you find difficult and make a one-page revision sheet for it.
- After revising, attempt a past or sample paper only if its board, subject, language, and year match yours.
How to use this
- Read the syllabus or open the official paper from the source link.
- Use the related materials below to revise the same subject.
- Check an answer key or marking scheme only when it is published by the board.