XII Science ��BIOLOGY��Syllabus and Question Paper Pattern
-Created By-
Shri. Deshmukh A. B.
M.Sc. B. Ed.
Chapter wise Distribution of Marks
Unit | Chapter | Name of Chapter | Marks without option | Marks with Option |
I Reproduction | 1. | Reproduction in Lower and Higher Plants | 6 | 8 |
| 2. | Reproduction in Lower and Higher Animals | 6 | 8 |
II Genetics and | 3. | Inheritance and Variation | 4 | 6 |
Evolution | 4. | Molecular Basis of Inheritance | 4 | 6 |
| 5. | Origin and Evolution of Life | 4 | 6 |
III Physiology | 6. | Plant Water Relation | 5 | 7 |
| 7. | Plant Growth and Mineral nutrition | 5 | 7 |
| 8. | Respiration and Circulation | 7 | 10 |
| 9. | Control and Co-ordination | 8 | 11 |
Unit | Chapter | Name of Chapter | Marks without option | Marks with Option |
IV Applied Biology | 10. | Human Health and Diseases | 3 | 4 |
| 11. | Enhancement of Food Production | 4 | 6 |
| 12. | Biotechnology | 5 | 7 |
V Ecology and Environment | 13. | Organisms and Populations | 3 | 4 |
| 14. | Ecosystems and Energy Flow | 3 | 4 |
| 15. | Biodiversity, Conservation and Environmental Issues | 3 | 4 |
| | TOTAL | 70 | 98 |
Weightage according to Learning Objectives
Sr. No. | Objective | Weightage (with Option) | Percentage |
1. | Knowledge | 29 | 30% |
2. | Understanding | 41 | 42% |
3. | Application and Skill | 28 | 28% |
| Total | 98 | 100% |
Weightage according to Difficulty level of the Question
Sr. No. | Difficulty Level | Weightage (with Option) | Percentage |
1. | Easy questions | 29 | 30% |
2. | Average questions | 49 | 50% |
3. | Difficult questions | 20 | 20% |
| Total | 98 | 100% |
Weightage according to Question type
Type of Que. | Marks per Que. | Number of Que.'s | Marks with Option | Marks without Option |
MCQ's | 1 | Q. 1 ( i to x = 10) | 10 | 10 |
VSAQ's | 1 | Q. 2 ( i to viii = 8) | 8 | 8 |
SAQ - I | 2 | Q. 3 to Q. 14 = 12 | 24 | 16 ( 8 out of 12) |
SAQ - II | 3 | Q. 15 to Q. 26 = 12 | 36 | 24 ( 8 out of 12) |
LAQ | 4 | Q. 27 to Q. 31 = 5 | 20 | 12 ( 3 out of 5) |
Total | | 31 Questions | 98 | 70 |