Biology Practical Class 12

Practical experiments help students to visualize the various concepts of biology. Furthermore, the syllabus for the practical exam for class 12 forms the precursor for concepts to be taught in professional courses such as medicine and dentistry.

List of Experiments for Class 12 Biology

Study the presence of suspended particulate matter in the air at two widely different sites.
Study the plant population density by quadrat method.
Study the plant population frequency by quadrat method.
Flowers adapted to pollination by different agencies (wind, insects, birds).
Pollen germination on stigma through a permanent slide.
Identification of stages of gamete development, i.e., T.S. of testis and T.S. of ovary through permanent slides (from grasshopper mice).
Meiosis in onion bud cell or grasshopper testis through permanent slides.
T.S. of blastula through permanent slides (Mammalian).
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.
Controlled pollination – emasculation, tagging and bagging.
Common disease-causing organisms Like Ascaris, Entamoeba, Plasmodium, Ringworm through permanent slides or specimens. Comment on symptoms of diseases that they cause.
Two plants and two animals (models/virtual images) found in xeric conditions. Comment upon their morphological adaptations.
Two plants and two animals (models/virtual images) found in aquatic conditions. Comment upon their morphological adaptations
Study pollen germination on a slide.
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.
Collect water from two different water bodies around you and study them for pH, clarity and presence of any living organism.
Prepare a temporary mount of the onion root tip to study mitosis.
Study the effect of different temperatures & 3 different pH on the activity of salivary amylase on starch.
Isolate DNA from available plant material such as spinach, green pea seeds, papaya, etc.
Mendelian inheritance using seeds of different colour/sizes of any plant.

The practical exam for Biology class 12 is composed of 30 marks. Students should try to score well in the practical exam as it can improve their overall score in the final board examination. Students must have a good knowledge of the theoretical concepts before performing the experiments. This would help them to understand the fundamental concepts more efficiently.

The Biology Practical Class 12 experiments are given here to help students prepare for their class 12 CBSE practical exam in a better way. For instance, most experiments presented here have content explaining the basis of the experiment. Moreover, exact steps, processes, procedures and precautions are elaborated, so that students understand them with ease.

Explore more concepts in Biology. Alternatively, register at BYJU’S to access the latest CBSE notification, CBSE syllabus, sample papers, marking scheme and more.

Leave a Comment

Your email address will not be published. Required fields are marked *