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CBSE Class 12 Biology Deleted Syllabus 2023-24: The National Education Policy 2020 focuses on promoting practical learning instead of rote learning. The board has eliminated the chapters including “Reproduction in Organisms”, “Strategies for Enhancement in Food Production”, and “Environmental Issues” as the content has become outdated. In total, there are 5 units and 13 chapters that are removed from the syllabus of the CBSE Class 12 Biology syllabus. This makes the learning experience more interesting and relevant. The changes are introduced to lessen the burden on students. Check out the tables given below in the article to check the deleted syllabus in detail. Accordingly, students can prepare the CBSE Class 12 Biology Syllabus 2023-24 and aim to score good marks in board exams.
CBSE Class 12 Biology Deleted Syllabus 2024
The following table includes the chapters that are deleted from the CBSE Class 12 Biology syllabus. Students can leave these topics and focus on the updated syllabus.
Unit & Chapter | Deleted Topic |
|---|---|
Unit-VI Reproduction Chapter-1: Reproduction in Organisms | (whole chapter deleted) |
Unit-VIII Biology and Human Welfare Chapter-9: Strategies for Enhancement in Food Production | (whole chapter deleted) |
Unit-X Ecology and Environment Chapter-13: Organisms and Populations | Organism and its Environment, Major Abiotic Factors, Responses to Abiotic Factors, Adaptations |
Unit-X Ecology and Environment Chapter-14: Ecosystem | Ecological Succession and Nutrient Cycles |
PRACTICALS A. List of Experiments | 2. Collect and study soil from at least two different sites and study them for texture, moisture content, pH and water holding capacity. Correlate with the kinds of plants found in them. 3. Collect water from two different water bodies around you and study them for pH, clarity, and presence of any living organism. 4. Study the presence of suspended particulate matter in air at two widely different sites. 8. Study the effect of different temperatures and three different pH on the activity of salivary amylase on starch. |
PRACTICALS B. Study/observation of the following (Spotting) | 10. Two plants and two animals (models/virtual images) found in xeric conditions. Comment upon their morphological adaptations. 11. Two plants and two animals (models/virtual images) found in aquatic conditions. Comment upon their morphological adaptations. |
CBSE Class 12 Biology Syllabus 2023-24
Check out the table below to know the topics included in the syllabus. Biology is divided into theory and practical. The theory exam will be conducted for 70 marks and the practical will be of 30 marks. The following table includes the list of chapters included in the syllabus.
Unit | Title |
|---|---|
Unit VI - Reproduction | Chapter 2: Sexual Reproduction in Flowering Plants Chapter 3: Human ReproductionChapter 4: Reproductive Health |
Unit VII - Genetics and Evolution | Chapter 6: Molecular Basis of Inheritance Chapter 7: Evolution |
Unit-VIII - Biology and Human Welfare | Chapter 8: Human Health and Diseases Chapter 10: Microbes in Human Welfare |
Unit-IX - Biotechnology and its Applications | Chapter 11: Biotechnology – Principles and ProcessesChapter 12: Biotechnology and its Applications |
Unit X - Ecology and Environment | Chapter 14: Ecosystem Chapter 15: Biodiversity and its Conversation |
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CBSE Class 12 Biology Syllabus 2023-24: Marks-Weightage
The following table provides details of marks allotted to each of the topics of CBSE class 12 Biology. The students can check the marks weightage for each of the topics in theory and practical exams.
CBSE class 12 Biology Theory Exam
Unit | Title | Marks |
|---|---|---|
VI | Reproduction | 16 |
VII | Genetics and Evolution | 20 |
VIII | Biology and Human Welfare | 12 |
IX | Biotechnology and its Applications | 12 |
X | Ecology and Environment | 10 |
TOTAL | 70 |
CBSE class 12 Biology Practical Exam
Evaluation Component | Marks |
|---|---|
One Major Experiment | 5 |
One Minor Experiment (Experiment 2 & 3) | 4 |
Slide Preparation (Experiment 1 & 4) | 5 |
Spotting | 7 |
Practical Record + Viva Voce | 4 |
Investigatory Project + Project Record + Viva Voce | 5 |
Total | 30 |
CBSE Class 12 Biology Syllabus 2023-24: Preparation Tips
To perform well in the board exams, students must prepare the subject thoroughly. The students can check the essential preparation tips given below:
- Prepare a schedule to cover all the topics. Divide the syllabus into smaller units to complete easily.
- Set a daily target and try to complete the syllabus at least 2 months before. Keep some time for revision.
- Make handwritten notes to revise the syllabus a day before the exam quickly. Also, solve the previous year's question papers after completing the syllabus to test the preparation level.
