Guess Paper Biology 10th Class 2015 -16 (All Punjab Boards)

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Practicals Biology
10th 1.Demonstration of the pressure of CO2 in exhled air.
2.Demonstrtion of the pressur of tar in Cigrate smoke.
3.Examinaton of structure of kidney.
4.Examination to abserve contraction in skin museles of frog in petridish filled with Mathylene blue and using 12V.D.C current.
5.Investigation of the nature of bone.
6.Examination of Mustard flower, gram seed and maize grain.
7.Investigation about the role of yeast and bacteria in the fermentation of flour and milk.

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