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Biology Lab ReportMohd Hafeez AzmanM03KTo Investigate and Measure Factor Affecting Rate of TranspirationResearch QuestionHow does light intensity affect the rate of transpiration of terrestrial plant?How does temperature affect the rate of transpiration of terrestrial plant?Variables IndependentLight intensity, TemperatureDependentRate of transpirationConstant Method, set of apparatus, number of leaves, length of plant.Apparatus150 cm3conical flask (3), 10 cm3measuring cylinder (1), sensitive electronic weight (1), retort stand (2), large basin (1), small knife (1), desk lamp (1)MaterialsDistilled water, oil, plant (2)
Methodology1.Two plants with the same number of leaves was cut at the same length with a 45 degrees cut using a small knife in a large basin filled with distilled water.2.Three 150 cm3conical flask were weighted and then each filled with 100 cm3of distilled water. It is then weighted again. The data is recorded.3.The 2 plants were then quickly removed from the basin and the base of the stem that was cut is dipped inside of the distilled water in 2 measuring cylinder labeled A and B. The last measuring cylinder that was not placed with a plant is the controlled experiment. 4.5 cm3