How to write HSC Biology Board Practical Exam (Model Answer Paper) By Prof. Prakash Surve скачать в хорошем качестве

How to write HSC Biology Board Practical Exam (Model Answer Paper) By Prof. Prakash Surve

#HSCBiologyPracticalModelAnswerPaper All answers given in video you have to write as it is. only the change is about paper pattern. *Kindly follow below question paper pattern for board practical exam ( year 2022 onwards) paper pattern given in video was for pandemic period. *Q.1 Make a temporary potato osmoscope to study osmosis. Sketch & label the diagram showing the change in the water level.OR Make a temporary slide to study plasmolysis. Sketch & label the diagram.OR Make a temporary mount of leaf epidermis to study the structure & distribution of stomata. Sketch & label the structure of stomatal apparatus.OR Find out the adulteration of the given milk sample, for water and starch.OR Perform the experiment to isolate DNA from given sample. Show your result to the examiner. Marks -04 Q.2 Dissect the given flower to display the floral whorls. Take a T. S. or V. S. of ovary to show number of chambers (locules). Sketch and label the diagram.OR Make a temporary preparation to show pollen germination. Draw neat and labelled diagram of the same. OR Calculate population density/ frequency of any one plant species by quadrat method. Marks - 03 Q.3 Perform the suitable tests to compare the given water sample(s) for its/ their pH and clarity. Make a note of its/ their pH and clarity.OR Perform the suitable tests to compare the given soil samples for their pH and type. Make a note on their pH and soil type.OR Perform the suitable test to compare the given leaf samples for the presence of particulate matter. Make a note of the same.OR Make a temporary mount of the given water sample. Observe and prepare a report on the presence of different planktons in it. Marks - 03 Q.4 Spotting: (Identify the following 10 spots -) Marks - 10 Spot A. Name the plant and write on floral adaptations for type of pollination in the same. (i. Wind pollination ii. Insect pollination)OR Identify and comment. [Controlled pollination (emasculation, bagging and bagging with tagging).] Spot B. Identify and comment [Any one experiment from plant physiology.] i. Rate of transpiration by four leaf experiment. ii. Imbibition of seeds/ Raisins. iii. Separation of plant pigments by paper chromatography Spot C. Identify the plant and comment on its morphological adaptations in aquatic/xeric habitats. Spot D. Identify and describe permanent slide of T. S. testis/T. S. of ovary/V. S. of blastula. Spot E. Identify and comment on the syndrome from to given karyotype. Spot F. Identify the disease and comment on control measures. Spot G. Identify and describe stage of meiosis in the given slide. Spot H. Identify the animal and comment on its xeric adaptations/ aquatic adaptations. Spot L. Name the part indicated by the marker and enlist its functions (ovule V.S./Model - eye/ear/brain). OR Identify the slide and comment with respect to the barr body. Spot J. Comment on the given pedigree chart with respect to the inheritance of trait.OR Comment on the given specimen of Drosophila with respect to eye colour and wing type.OR Identify the type of cell marked and mention its features/functions (blood profile). Part C: Q.5 Project Report Marks - 05 Q.6 Viva voce (on question no. 1 to 3) Marks - 02 Q.7 Practical notebook published by Balbharati (Certified journal ) Marks - 03    • 𝘽𝙞𝙤𝙡𝙤𝙜𝙮 𝙚𝙫𝙚𝙧𝙮𝙩𝙝𝙞𝙣𝙜   link for live demonstration of biology videos    • 12th Biology Practicals   link for Biology Practical videos    • Important diagrams for board exam . How to...   link for How to draw diagrams easily