different transpiration rates. Cooler air has a higher relative humidity than warmer air, meaning that cooler air is able to hold less water than warm air. Therefore, warmer air increases the driving force of transpiration, as it increases the rate of evaporation. One inconsistency that occurred during this experiment was the distance the light was place away from the plant. One error that occurred during this experiment was the fact that air bubbles developed between the leaf and water, inhibiting transpiration, as the leaf stem was not in contact with the water. Another error was that the leaf became limp and charred from the light and heat, changing the position it was in during the 24 hour period. A way to fix these problems is to place the plants the same distance away from the light source. The plant has to be far enough away from the light source in order to ensure that the plant does not burn or char. Tight seals from the stem of the leaf to the tube with water is also necessary in order to eliminate error. Close observation of the plant is necessary as well in order to fix the inconsistencies and errors. This type of information could be used in real life when finding the best temperature to grow crops at and the temperature that would be the most beneficial for the health of the plant. Too much heat can cause an excessive amount of water loss, and could be harmful to the plant.
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- Fall '15
- Biology, lab, AP BIO, Report