Biology Practical Copy
Experiment 01 – To identify the stages of gamete development.
Experiment 02 – To study the T S of Blastula
Experiment 03 -To prepare a temporary mount of onion tip to study mitosis.
Experiment 04 -To study the pollen germination on slide.
Experiment 05 -To study cross fertilization.
Aim To verify the laws of combination of resistances (series and parallel) using a metre bridge. Apparatus and Material Required Principle When two resistances \(R_1\) and \(R_2\) are connected in series, the resistance of the combination \(R_S\) is given by \[R_S = R_1 + R_2\] When these two resistances are connected in parallel, the resistance of…
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Aim To determine resistivity of two wires by plotting a graph for potential difference versus current. Apparatus and Material Required Principle According to Ohm’s Law, the current passing through a conductor is directly proportional to the voltage applied across it, as long as the conductor’s temperature and other physical properties remain constant. If I be the…
To determine the resistance per centimeter of a given wire by plotting a graph of potential difference versus current.
To study cross fertilization.
Aim To assemble a household circuit comprising three bulbs, three (on/off) switches, a fuse and a power source. Apparatus and Material Required Three bulbs (12 W, 220 V each), three (on/off) switches, socket, a fuse of 1.0 A, plug, flexible connecting wire, main switch. Principle If \(P_1\), \(P_2\), \(P_3\), \(P_4\), \(P_5\), … \(P_n\) be the power…