List of Biology Experiments for Term II
1. Prepare a temporary mount of the onion root tip to study mitosis.2. Collect and study soil from at least two different sites and study them for texture, moisture content, pH & 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.
Study/observation of the following (Spotting) for Term II
General Guidelines
1.The practical examination will be of one-hour duration.
2.The written examination in practicals for these students will be conducted at the time of practical examination of all other students.
1.The practical examination will be of one-hour duration.
2.The written examination in practicals for these students will be conducted at the time of practical examination of all other students.
3. The written test will be of 30 minutes duration.
4. The question paper given to the students should be legibly typed. It should contain a total of 8 practical skill based very short answer type questions. A student would be required to answer any 5 questions.
5. A writer may be allowed to such students as per CBSE examination rules.
6. All questions included in the question paper should be related to the listed practicals. Every question should require about two minutes to be answered.
7. These students are also required to maintain a practical file. A student is expected to record the listed experiments Term -wise as per the specific instructions for each subject. These practicals should be duly checked and signed by the internal examiner.
8. The format of writing any experiment in the practical file should include aim, apparatus required, simple theory, procedure, related practical skills, precautions etc.
9. Questions may be generated jointly by the external/internal examiners and used for 4. The question paper given to the students should be legibly typed. It should contain a total of 8 practical skill based very short answer type questions. A student would be required to answer any 5 questions.
5. A writer may be allowed to such students as per CBSE examination rules.
6. All questions included in the question paper should be related to the listed practicals. Every question should require about two minutes to be answered.
7. These students are also required to maintain a practical file. A student is expected to record the listed experiments Term -wise as per the specific instructions for each subject. These practicals should be duly checked and signed by the internal examiner.
8. The format of writing any experiment in the practical file should include aim, apparatus required, simple theory, procedure, related practical skills, precautions etc.
assessment.
10. The viva questions may include questions based on basic theory/principle/concept,
apparatus/materials/chemicals required, procedure, precautions, sources of error etc.
Class XII
Practicals should be conducted alongside the concepts taught in theory classes.
A. Items for Identification/ familiarity with the apparatus for assessment in practicals (All
experiments)
TERM -II:
1. Soil from different sites- sandy, clayey, loamy; Small potted plants, Cactus/Opuntia (model), Large flowers, Maize inflorescence.
2. Model of Ascaris
B. List of Practicals
TERM -I:
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. Preparation of pedigree charts of genetic traits such as rolling of tongue, colour blindness.
TERM -II:
4. Study of the soil obtained from at least two different sites for their texture.
5. Identify common disease-causing organisms like Ascaris (Model) and learn some
common symptoms of the disease that they cause.
6. 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.
Practicals should be conducted alongside the concepts taught in theory classes.
A. Items for Identification/ familiarity with the apparatus for assessment in practicals (All
experiments)
TERM -II:
1. Soil from different sites- sandy, clayey, loamy; Small potted plants, Cactus/Opuntia (model), Large flowers, Maize inflorescence.
2. Model of Ascaris
B. List of Practicals
TERM -I:
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. Preparation of pedigree charts of genetic traits such as rolling of tongue, colour blindness.
TERM -II:
4. Study of the soil obtained from at least two different sites for their texture.
5. Identify common disease-causing organisms like Ascaris (Model) and learn some
common symptoms of the disease that they cause.
6. 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.
Prescribed Books:
1. Biology, Class-XII, Published by NCERT
2. Other related books and manuals brought out by NCERT (including multimedia)
3. Biology Supplementary Material (Revised). Available on CBSE website.
1. Biology, Class-XII, Published by NCERT
2. Other related books and manuals brought out by NCERT (including multimedia)
3. Biology Supplementary Material (Revised). Available on CBSE website.
