Biology that deals with the study of the living world and living organisms wouldn't be complete without practical classes. Whether you want to become a doctor or biotechnologist or simple ace your exams, remember to prepare for your Biology practical exams in addition to your preparation for Biology theory exams. Here are some
Biology practical syllabus
Evaluation scheme Maximum Marks: 30
One major experiment 5
One minor experiment 4
Slide preparation 5
Spotting 7
Practical record + viva vice 4
Project record + viva vice 5
Total 30 marks
1. Prepare a
temporary mount to observe pollen germination.
2.
Collect and study soil from at
least two different sites and study them for texture, moisture content, pH and
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.
4. Study the
presence of suspended particulate matter in air at two widely different sites.
5. Study the
plant population density by quadrat method.
6. Study the
plant population frequency by quadrat method.
7. Prepare a
temporary mount of onion root tip to study mitosis.
8.
Study the effect of different
temperatures and three different pH on the activity of salivary amylase on
starch.
9. Isolate
DNA from available plant material such as spinach, green pea seeds, papaya,
etc.
B. Study/observation of 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 colourblindness.
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.
Comment on symptoms of diseases that they cause.
10. Two plants and two animals (models/virtual
images) found in xeric conditions. Comment upon their morphological
adaptations.
11. Two plants and two animals (models/virtual
images) found in aquatic conditions. Comment upon their morphological
adaptations.
Tips
- Study the Biology theory that will form the basis of your experiments thoroughly
- The key to scoring high marks during a Biology practical exam is diagrams. Study from diagrams, revise from diagrams and practice drawing diagrams
- Spotting section can be scoring if you are familiar with the diagrams
- Knowing how to make correct sides is very important
- Understand the syllabus comprehensively so in each experiment/spotting you know what is to be done
- Make a quick revision list for Biology practical preparation to revise the important points and concepts you need to know
- Group study is helpful while preparing, each friend can describe an experiment while others try to identify the concept used in the experiment
- Note down your experiment procedure carefully, many students lose marks while writing the project notes in a hurry
Although the Biology practical exam may seem easy, it's important to devote some time to prepare, to help you score high in the overall Biology subject; theory and practical combined.
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