Biology Practical Class 12 CBSE 2022-23: CBSE Class 12 Biology Practical Syllabus 22-23 incorporates important experiments which help the students learn and understand the concepts through visualisation. Through Biology Practical Class 12 CBSE syllabus, the students study the principles that are common to animals, plants and microorganisms and understand the connection between Biology and other areas of science. 

This article provides the students with CBSE Class 12 Biology Practical Syllabus 22-23, question papers, sample papers, etc. In this article, students can also find the details about CBSE Class 12 practical exams like the evaluation scheme, list of experiments, and project work. Continue reading to learn more about Biology Practical Class 12 CBSE 2022.

Biology Practical Class 12 CBSE: Overview

Before discussing further details about CBSE Class 12 Biology Practical, let us have a brief overview of CBSE Class 12 Physics in the table below:

CBSE Class 12	Particulars
Exam Name	Central Board of Secondary Education Class 12
Conducting Body	Central Board of Secondary Education (CBSE)
Exam Level	Class 12
Mode of Examination	Offline
Subject	Biology Practical
Exam Duration	3 Hours
CBSE Official Website	cbse.gov.in
NCERT Official Website	ncert.nic.in

CBSE Class 12 Biology Practical Syllabus 22-23

Students can check the Biology Practical Class 12 CBSE syllabus below:

A. List of Experiments:

1. Prepare a temporary mount to observe pollen germination.

2. Study the plant population density by the quadrat method.

3. Study the plant population frequency by the quadrat method.

4. Prepare a temporary mount of the onion root tip to study mitosis.

5. Isolate DNA from available plant materials such as spinach, green pea seeds, papaya, etc.

B. Study and observe the following (Spotting):

1. Flowers adapted to pollination by different agencies (wind, insects, birds).

2. Pollen germination on stigma through a permanent slide or scanning electron micrograph.

3. Identification of stages of gamete development, i.e., T.S. of testis and T.S. of ovary through

permanent slides (from grasshopper/mice).

4. Meiosis in onion bud cell or grasshopper testis through permanent slides.

5. T.S. of blastula through permanent slides (Mammalian).

6. Mendelian inheritance using seeds of different colour/sizes of any plant.

7. 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.

8. Controlled pollination – emasculation, tagging and bagging.

9. 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.

10. Models specimen showing symbolic association in root modules of leguminous plants, Cuscuta on host, lichens.

11. Flash cards models showing examples of homologous and analogous organs.

Here is the CBSE Class 12 Biology Practical Examination Syllabus for Visually Impaired Students:

C. Items for Identification/ familiarity with the apparatus for assessment in practicals (All experiments) 

Beaker, flask, petriplates, soil from different sites – sandy, clayey, loamy, small potted plants, aluminium foil, paintbrush, test tubes, starch solution, iodine, ice cubes, Bunsen burner/spirit lamp/water bath, large flowers, Maize inflorescence, model of developmental stages highlighting morula and blastula of frog, beads/seeds of different shapes/size/texture Ascaris, Cactus/Opuntia(model).

D. List of Practicals

1. Study of flowers adapted to pollination by different agencies (wind, insects).

2. Identification of T.S of morula or blastula of frog (Model).

3. Study of Mendelian inheritance pattern using beads/seeds of different sizes/ textures.

4. Preparation of pedigree charts of genetic traits such as rolling of tongue and colour blindness.

5. Study of emasculation, tagging and bagging by trying out an exercise on controlled pollination.

6. Identify common disease causing organisms like Ascaris (model)and learn some common symptoms of the disease that they cause.

7. Comment upon the morphological adaptations of plants found in xerophytic conditions.

Note: The above practicals may be carried out in an experiential manner rather than recording observations. Students can also check Biology Practical Class 12 CBSE PDF for more details.

CBSE Class 12 Biology Practical Marking Scheme

Here is the Biology Practical Class 12 CBSE 2022 Evaluation Scheme:

Time allowed: 3 Hours

Max. Marks: 30

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 students’ work over the academic session may be given)	4
Investigatory Project and its Project Record + Viva Voce (Credit to the students’ work over the academic session may be given)	5
Total	30

Here is the CBSE Class 12 Biology Practical Examination Evaluation Scheme for Visually Impaired Students:

Time: 02 Hours

Max. Marks: 30

Topic	Marks
Identification/ Familiarity with the apparatus	5
Written test (Based on given/ prescribed practicals)	10
Practical Records	5
Viva	10
Total	30

General Guidelines

• The practical examination will be of two hours duration. The list of ten experiments is included here. 
• The written examination in practicals for these students will be conducted at the time of the practical examination of all other students.
• The written test will be of 30 minutes duration.
• The question paper given to the students should be legibly typed. It should contain a total of 15 practical skill based, very short answer type questions. A student would be required to answer any 10 questions.
• A writer may be allowed to such students as per CBSE examination rules.
• All questions included in the question paper should be related to the listed practicals. Every question should require about two minutes to be answered.
• These students are also required to maintain a practical file. A student is expected to record at least five of the listed experiments as per the specific instructions for each subject. These practicals should be duly checked and signed by the internal examiner.
• The format of writing any experiment in the practical file should include aim, apparatus required, simple theory, procedure, related practical skills, precautions etc.
• Questions may be generated jointly by the external/internal examiners and used for assessment.
• The viva questions may include questions based on basic theory/ principle/ concept, apparatus/ materials/ chemicals required, procedure, precautions, sources of error etc.

NCERT Books for Class 12 Biology (Hindi/English) PDF

Here are the download links for the Class 12 Biology NCERT PDF:

Book Name	NCERT 12 Biology Book PDF Download Link
CBSE Biology Class 12 PDF Download	(English)
NCERT Biology Class 12 PDF Download	(Hindi)
Class 12 Biology Book	(Human Ecology and Family Sciences)

FAQs About Biology Practical Class 12 CBSE 2022

Here are the most frequently asked questions about Biology Practical Class 12 CBSE 2022:

Q.1: Where can I find the list of experiments asked in CBSE Class 12 Biology Practical exam?

Ans: Students may be asked to prepare a temporary mount to observe pollen germination or study the plant population density by the quadrat method. Find the complete list of experiments in the above article.

Q.2: What is the format of writing an experiment in the practical file of CBSE Class 12 Biology Practical?

Ans: The format of writing any experiment in the practical file should include aim, apparatus required, simple theory, procedure, related practical skills, precautions etc.

Q.3: Where can I find Biology Practical Class 12 CBSE PDF?

Ans: The link to download Biology Practical Class 12 CBSE PDF is provided above. In the above article, students can also check CBSE Class 12 Biology Practical Syllabus 22-23.

Q.4: What is the evaluation scheme for Biology Practical Class 12 CBSE 2022?

Ans: The Class 12 CBSE Biology Practical Exam will carry 30 marks, and the duration of the exam will be 3 hours. Check the complete marking scheme in the above article.

Q.5: What may be asked in Biology Practical Class 12 CBSE Viva?

Ans: The viva questions may include questions based on basic theory/ principle/ concept, apparatus/ materials/ chemicals required, procedure, precautions, sources of error etc.

You may also like to read:

CBSE Class 12 Practical Exam: Subject-wise PDFs	CBSE Sample Paper Biology Class 12: PDF
CBSE Sample Papers Class 12: PDFs	Class 12 Biology Syllabus 2022

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