NCERT Class 12 Biology Lab Manual: Download Exercise Wise FREE PDFs
CBSE Class 12 Biology Lab Manual PDF: This article contains direct links to download the latest NCERT Biology lab manuals for Class 12 Biology. Also, check the CBSE Class 12 Biology practical syllabus and download the lab manuals accordingly.
NCERT Class 12 Biology Lab Manual PDF: The National Council of Educational Research and Training (NCERT) aims to facilitate student learning by making it more diverse and holistic. One of the major scopes of doing that is emphasising more practical learning. This purpose is served by the NCERT lab manuals, which comprise a list of practicals based on the curriculum to help students conduct and learn scientific experiments. Here is the NCERT Class 12 Biology lab manual provided in PDF format that can be used by the students who follow NCERT. Download the exercise-wise free PDFs and leap the rote theoretical learning to see what things look like in real life.
Features of NCERT Class 12 Biology Lab Manual
The NCERT lab manual for CBSE Class 12 Biology is a valuable resource designed and released to help students grab practical knowledge on theoretical concepts. Here are some key features of the NCERT 12th Biology practical manual:
- Covers Practical Experiments: The manual has a series of practical exercises that students perform in the laboratory. These experiments cover various topics from the Class 12 Biology syllabus, providing hands-on experience and a deeper understanding of concepts.
- Detailed Instructions: Each experiment includes clear and concise instructions, making it easy for students to follow the steps properly with the teacher’s guidance. The instructions generally comprise of a list of materials, the theory behind the practical, the procedure, and possible observation.
- Promote Skill Development: The lab manual not only guides students through the practical but encourages them to develop essential scientific skills, such as observation, data collection, analysis and interpretation, and scientific communication through reports or presentations.
- Investigatory Projects: The manual includes sections on investigatory projects, where students design and conduct their own research experiments.
Overall, the NCERT Class 12 Biology Lab Manual is a valuable resource for students to gain practical experience by applying theoretical knowledge.
CBSE Class 12 Biology Practical Syllabus 2024-25
The evaluation scheme for CBSE Class 12 Biology board practicals is divided into the following sections with their respective marks:
| Evaluation Scheme | Marks | |
| One Major Experiment 5 | 5 | |
| One Minor Experiment 2 & 3 | 4 | |
| Slide Preparation 1 & 4 | 5 | |
| Spotting | 7 | |
| Practical Record + Viva Voce | (Credit to the student’s work over the academic session may be given.) | 4 |
| Investigatory Project and its Project Record + Viva Voce | 5 | |
| Total | 30 | |
List of Experiments
- Prepare a temporary mount to observe pollen germination.
- Study the plant population density by quadrat method.
- Study the plant population frequency by quadrat method.
- Prepare a temporary mount of onion root tip to study mitosis.
- Isolate DNA from available plant material such as spinach, green pea seeds, papaya, etc.
Study and observe the following (Spotting):
- Flowers adapted to pollination by different agencies (wind, insects, birds).
- Pollen germination on stigma through a permanent slide or scanning electron micrograph.
- Identification of stages of gamete development, i.e., T.S. of testis and T.S. of ovary through permanent slides (from grasshopper/mice).
- Meiosis in onion bud cell or grasshopper testis through permanent slides.
- T.S. of blastula through permanent slides (Mammalian).
- Mendelian inheritance using seeds of different colour/sizes of any plant.
- Prepared pedigree charts of any one of the genetic traits such as rolling of tongue, blood groups, ear lobes, widow's peak and colour blindness.
- Controlled pollination - emasculation, tagging and bagging.
- Common disease-causing organisms like Ascaris, Entamoeba, Plasmodium, any fungus causing ringworm through permanent slides, models or virtual images or specimens. Comment on symptoms of diseases that they cause.
- Models specimen showing symbolic association in root modules of leguminous plants, Cuscuta on host, lichens.
- Flash cards models showing examples of homologous and analogous organs.
NCERT Class 12 Biology Lab Manual PDF Exercise Wise
Check the complete list of practicals here in PDF format. Download the file as per your requirement and follow the instructions carefully to conduct the experiment.
Download these lab manuals to prepare for the final board examination and prepare your practical files.
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