CBSE Class 11 Biology Practical Syllabus 2024-25

In this article, we’re providing the CBSE Class 11 Biology Practical Syllabus 2024-25, along with a list of experiments. You’ll find details on how to conduct the practical exam, the evaluation scheme, project work guidelines, and more.

Class 11th percentage is crucial for a student’s future, serving as the foundation for their academic journey. Just like a strong base supports a building, good marks in practical exams can help you achieve your dreams.

If you’re seeking the latest CBSE Class 11 Biology Practical Syllabus 2024, you’ve come to the right place. Additionally, we’ve included useful tips at the end of this article to help you maximize your marks in the CBSE Class 12 Biology Practical exam 2025.

Evaluation Scheme for CBSE Class 11 Biology Practical Exam

  1. One Major experiment = 05
  2. One Minor experiment = 04
  3. Slide Preparation = 05
  4. Spotting = 07
  5. Practical Record + Viva Voice = 04
  6. Project Record + Viva Voice = 05
  7. Total = 30 Marks

CBSE Class 11 Biology Practical Syllabus  in Detail

A: List of Experiments (60 Periods)
1. Study and description of three locally available common flowering plants, one from each of the families Solanaceae, Fabaceae and Liliaceae (Poaceae, Asteraceae or Brassicaceae can be
substituted in case of particular geographical location) including dissection and display of floral whorls, anther and ovary to show number of chambers (floral formulae and floral diagrams). Types
of root (Tap and adventitious); stem (herbaceous and woody); leaf (arrangement, shape, venation,
simple and compound).

2. Preparation and study of T.S. of dicot and monocot roots and stems (primary).

3. Study of osmosis by potato osmometer.

4. Study of plasmolysis in epidermal peels (e.g. Rhoeo leaves).

5. Study of distribution of stomata in the upper and lower surface of leaves.

6. Comparative study of the rates of transpiration in the upper and lower surface of leaves.

7. Test for the presence of sugar, starch, proteins, and fats. Detection of suitable plant and animal materials.

8. Separation of plant pigments through paper chromatography.

9. Study of the rate of respiration in flower buds/leaf tissue and germinating seeds.

10. Test for the presence of urea in urine.

11. Test for presence of sugar in urine.

12. Test for presence of albumin in urine.

13. Test for presence of bile salts in urine.

B. Study/observation of the following (spotting)
1. Study the parts of a compound microscope.

2. Study of the specimens/slides/models and identification with reasons – Bacteria, Oscillatoria, Spirogyra, Rhizopus, mushroom, yeast, liverwort, moss, fern, pine, one monocotyledonous plant, one
dicotyledonous plant and one lichen.

3. Study of virtual specimens/slides/models and identification with reasons – Amoeba, Hydra, liver fluke, Ascaris, leech, earthworm, prawn, silkworm, honeybee, snail, starfish, shark, rohu, frog, lizard, pigeon, and rabbit.

4. Study of tissues and diversity in shapes and sizes of plant and animal cells (palisade cells, guard cells, parenchyma, collenchyma, sclerenchyma, xylem, phloem, squamous epithelium, muscle fibers and mammalian blood smear) through temporary/permanent slides.

5. Study of mitosis in onion root tip cells and animal cells (grasshopper) from permanent slides.

6. Study different modifications in roots, stems, and leaves.

7. Study and identification of different types of inflorescence (cymose and racemose).

8. Study of imbibition in seeds/raisins.

9. Observation and comments on the experimental setup for showing:
a) Anaerobic respiration
b) Phototropism
c) Effect of apical bud removal
d) Suction due to transpiration

10. Study the human skeleton and different types of joints with the help of virtual images/models only.

11. Study of external morphology of cockroach through virtual images/models.

Practical Examination for Visually Impaired Students Class XI

Note: The ‘Evaluation schemes’ and ‘General Guidelines’ for visually impaired students as given for Class XII may be followed.

A. Items for Identification/Familiarity with the apparatus / equipments / animal and plant material/chemicals etc. for assessment in practicals (All experiments)

Plants of –Solanaceae- Brinjal, Petunia, any other Fabaceae- Rice, Wheat, any other
Liliaceae- Any of the Lilies

A compound microscope, seeds of monocot and dicot- maize and gram or any other Model of Human

skeleton to show – Ball and socket joints of girdles and limbs Rib cage Test tube, honeycomb, Mollusc shell, Models of Pigeon and Starfish, mushroom, Petri dish, succulents
such as Aloe vera/kalanchoe, raisins, beaker, potatoes, scalpel, chromatography paper, chromatography chamber, alcohol, specimen/model of cockroach.

B. List of Practicals
1. Study three locally available common flowering plants of the families – Solanaceae, Fabaceae, Liliaceae and identify: Types of roots as Tap and Adventitious Types of stems as Herbaceous or Woody Types of leaves as Compound or Simple

2. Study the parts of a compound microscope- eyepiece and objective lens, mirror, stage, coarse and fine adjustment knobs.

3. Differentiate between monocot and dicot plants based on venation patterns.

4. Study the following parts of human skeleton (Model): Ball and socket joints of thigh and shoulder Rib cage

5. Study honey bee through the comb, snail through the shell, Starfish through the model, and Pigeon through the model.

6. Identify the given specimen of a fungus – Mushroom.

7. Study the adaptive features of xerophytic plants.

8. Study the process of osmosis through endosmosis in raisins.

9. Identify and relate the given experimental setup with the aim of the experiment: Paper Chromatography or Potato Osmometer

Practical examination pattern varies a bit subjectwise and a lot also depend upon the External invigilator ( Generally They are good and cooperative in nature). Subjectwise here are some of the important points that can give you an edge. Do keep in mind that practicals have to be dealt with by you and the external examiner. Both of you don’t know each other.

Tips for Practical Exam

  • Understand concepts, don’t mug up anything.
  • Try to do all the practicals by yourself.
  • Develop an interest in practicing. If you love the subject, the subject will love you back.
  • Be respectful to the examiner.
  • Keep yourself tension-free. You must not appear tense in front of the examiner.
  • Don’t lose your stamina. Don’t tell them that you are not afraid of him/her or anything else.
  • Remember that you have to leave an expression on him/her how bold it is.
  • Look into his/her eyes straight. 
  • Pay full attention to the examiner. 
  • If you don’t know the answer, or be it hard to guess, Stay it on until he tells the correct ones. 

Class 11 board practicals are essential but don’t stress too much about them. While aiming for full marks is important, your focus should be on understanding the experiments rather than memorizing them. Platforms like ybstudy offer resources to help you learn and memorize formulas, and your teachers are always available to assist you if needed. Approach the exam with a calm mindset, and you’ll be able to ace it with ease. Best of luck for your boards!

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