CBSE Biology Practical Class 11 -CoolGyan

The concepts of Class 11 Biology practicals are very important because these theories are also included in Class 12 final board examination. Students must learn these theories and concepts properly if they want to score good marks in their final exam. The syllabus of the practical examination for CBSE Biology Class 11 is prepared by subject experts according to the latest syllabus of the Central Board of Secondary Education. Students must focus on the CBSE Class 11 Biology practical exam as it carries 30 marks. They must aim to get full marks in this section so that they can improve their overall performance.

Students must read all the theories and concepts before appearing in the practical examination. They should practise the diagrams which are required for practical experiments. The Biology Practical CBSE Class 11 experiments are given here to help students score better in the exam.

CBSE Class 11 Biology Practicals

Class 11 Biology Experiments

A: List of Experiments

1: Study and description of three locally available common flowering plants, one from each of the families Solanaceae, Fabacceae & Liliaceae including dissection and display of floral whorls, anther and ovary to show number of chambers.

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

3: Separation of plant pigments through paper chromatography.

4: Study of the rate of respiration in flower buds/Leaf tissue and germinating seeds.

5: Test for presence of urea in urine. (not included)

6: Test for presence of sugar in urine.

7: Test for presence of albumin in urine.

B: Study/Observer of the following (Spotting)

1: Parts of a compound microscope.

2: 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: 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: Tissues and diversity in shapes and sizes of plant and animal cells (palisade cells, guard cells, parenchyma, collenchyma, sclerenchyma, xylem, phloem, squamous epithelium, muscle fibres and mammalian blood smear) through temporary/permanent slides.

5: Mitosis in onion root tip cells and animals cells (grasshopper) from permanent slides.