Content Curator | Updated On - Aug 27, 2024
CBSE Class 12 Biology Practical syllabus is released along with the theory syllabus through a common PDF. Students can check the practical syllabus at the official website cbseacademic.nic.in.
Out of the total 100 marks, the theory paper of Biology will carry 70 marks and the practical paper carries 30 marks in CBSE Class 12 Exams 2024. The Biology practical syllabus involves major and minor experiments, slide preparation, spotting, investigatory projects, viva voce, and other activities.
CBSE Board recommends a total of 60 periods for practical sessions. The practical curriculum is designed to enhance students' comprehension and application of scientific principles and fundamental concepts. In this article, students can find the complete CBSE Class 12 Biology Practical Syllabus for the academic year 2023-24.
Also Check: CBSE Class 12 Date Sheet 2024
CBSE Class 12 Biology Practical 2024 Marking Scheme
The marking scheme for the CBSE Biology Practical Class 12 is tabulated below:
| 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 |
Also Check:
CBSE Class 12 Biology Practical Syllabus 2023-24
CBSE Class 12 Biology Practical syllabus involves a combination of experiments, slide preparation, and spotting. It is crucial for students to have a strong understanding of the theoretical concepts before performing practical experiments to comprehend the fundamental principles effectively.
The Biology Practical Class 12 is divided into three parts - list of experiments, spotting, and practicals. The detailed syllabus for each part is provided below.
Part A - List of Experiments
The following experiments shall be performed by students in CBSE Class 12 Biology Practical:
- 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 the onion root tip to study mitosis.
- Isolate DNA from available plant material (e.g., spinach, green pea seeds, papaya).
Part B - Spotting (Study and Observe)
Students need to observe and identify the following:
- Flowers adapted to pollination by different agencies (wind, insects, birds).
- Pollen germination on stigma through a permanent slide or SEM.
- Identification of stages of gamete development (T.S. of testis and ovary).
- Meiosis in onion bud cells or grasshopper testis through permanent slides.
- T.S. of blastula through permanent slides (Mammalian).
- Mendelian inheritance using seeds of different colors/sizes of any plant.
- Prepared pedigree charts of genetic traits (e.g., rolling of tongue, blood groups).
- Controlled pollination - emasculation, tagging, and bagging.
- Study of common disease-causing organisms like Entamoeba, Plasmodium,Ascaris and any fungus causing ringworm through permanent slides, models, or virtual images.
- Models showing symbolic association in root modules of leguminous plants, Cuscuta on host, and lichens.
- Flashcard models showing examples of homologous and analogous organs.
Part C - Practicals
The practicals included in the CBSE Class 12 Biology Syllabus 2023-24 are given below:
- Study of flowers adapted to pollination by different agencies (wind, insects).
- Identification of T.S. of morula or blastula of frog (model).
- Study of mammalian inheritance pattern using beads/seeds of different sizes/texture.
- Preparation of pedigree charts of genetic traits such as rolling of tongue, colour blindness.
- Study of emasculation, tagging, and bagging by trying out an exercise on controlled pollination.
- Identify common disease causing organisms like Ascaris (model), and learn some common symptoms of the disease that they cause.
- Comment upon the morphological adaptations of plants found in xerophytic conditions.
Note: These practicals shall be performed by the students rather than observing.
Check Syllabus of Other Subjects:
CBSE Class 12 Biology Practical Important Questions
Students can check some important questions for CBSE Class 12 Biology Practical and Viva Voce below:
- What is a pollen grain?
- What is the shape of the pollen grain?
- What are enzymes?
- Define mitosis
- Why is mitosis called somatic cell division?
- Which kind of soil is best suited for plant growth?
- What is hummus?
- What determines the PH of the soil?
- What is a tectum?
- What is pollination?
- Which part of the flower contains pollen?
- What is the male part of the flower called?
- What happens to the generative nucleus in the pollen tube of a germinating pollen grain?
- The female gamete is produced by?
- What do you mean by soil texture?
- Which type of soil is suitable for plant growth?
- What are the different types of soil?
- Mention some of the main components of soil
- What is the term used to describe the scientific study of soil?
- What pH range favors the best plant growth?
- What do you mean by the term ‘buffer’?
- What is the pH of tap water?
- Define BOD
- What do you understand by prokaryotic organisms?
- What is the importance of pH?
- What is the full form of DNA?
- What is the full form of RNA?
- What is the difference between DNA and RNA?
- Who discovered the structure of DNA?
- Where will you look for DNA and RNA in the cell?
- What are the building blocks of nucleic acids?
- Who gave the double helical structure of DNA?
- Differentiate between mitosis in plants and animals?
- Why do we use onion root tips or grasshopper larvae for studying mitosis?
- What do you mean by the term ‘karyokinesis’
- Why mitosis is called equational division?
- What is the function of saliva?
- Name three glands that produce saliva in the body
CBSE Class 12 Biology Practical Book - Lab Manual
CBSE has prescribed Class 12 Biology Lab Manual for the practical syllabus. CBSE Class 12 Biology Lab Manual contains each experiment in detail with proper procedure, theory, aim, apparatus required etc. The book also contains Viva voce questions for practice for CBSE Class 12 Biology Practical.
CBSE Class 12 Biology Practical Guidelines
CBSE has mentioned the below guidelines for Biology Practical Class 12 in its official syllabus PDF. Students must strictly adhere to these guidelines.
- CBSE Class 12 Biology Practical exam will be conducted for a duration of two hours.
- Students will be provided 30 minutes for the written test.
- The practical question paper will contain 15 practical based very short answer questions. Students have to answer any 10 questions.
- Students have to prepare a practical file also. The practical file must have at least 5 experiments.
- The practical file must be checked by the school teachers.
- The VIVA questions will be based on basic theory, principle, concept, apparatus, materials, chemicals required, procedure, precautions, and sources of error.
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Frequently Asked Questions
Ques. What are the maximum marks allotted to CBSE Class 12 Biology Practical?
Ans. CBSE Class 12 Biology Practical carries a maximum of 30 marks.
Ques. How much time is given for the CBSE Class 12 Biology Practical exam?
Ans. CBSE Class 12 Biology Practical examination will be conducted for 3 hours.
Ques. What does the CBSE Class 12 Biology Practical evaluation scheme include?
Ans. CBSE Class 12 Biology Practical evaluation scheme consists of major and minor experiments, slide preparation, spotting, practical record with viva voce, and the investigatory project along with its project record and viva voce.
Ques. What are the major topics covered in the CBSE Class 12 Biology Practical Syllabus 2023-24?
Ans. CBSE Class 12 Biology Practical syllabus includes experiments related to pollen germination, plant population density, mitosis study, DNA isolation, and others. Additionally, there are spotting topics on pollination, stages of gamete development, meiosis etc.
Ques. How many periods are recommended for practical sessions as per the CBSE Board?
Ans. CBSE Board recommends a total of 60 periods for practical sessions.
Ques. What is the purpose of CBSE Class 12 Biology Practical?
Ans. CBSE Class 12 Biology Practical aims to provide students with hands-on experience in conducting experiments and practical applications related to various biological concepts. It helps reinforce theoretical knowledge and develop practical skills.
Ques. Is the CBSE Class 12 Biology Practical essential for scoring well in the board examination?
Ans. CBSE Class 12 Biology Practical carries 30 marks. These marks are enough to impact your overall marks and percentage. Moreover, getting good marks in practicals also reduces the pressure of attaining very high scores in theory exams for a good percentage.
Ques. How are practical experiments evaluated in CBSE Class 12 Biology?
Ans. Practical experiments in CBSE Class 12 Biology are evaluated based on students' experimental skills, accuracy in performing tasks, data analysis, and their ability to interpret and analyze the results obtained.
Ques. How can students prepare for the CBSE Class 12 Biology Practical?
Ans. Students can prepare for the CBSE Class 12 Biology Practical by thoroughly understanding the theoretical concepts, practicing the experiments beforehand, and seeking guidance from teachers to perform effectively during the practical examination.
*The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College.
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