for photosynthesis to occur. I would also use a water bath for all experiments, and not just some. We will cut the elodea to exactly 7 cm at a slant. The light intensity will be kept the same, by keeping the lamp an equal distance from the elodea in each experiment. However, some of the equipment we used was not as accurate as it could have been. The experiments took place at different times of the day, therefore there would have been different light intensities for different experiments, which would cause inaccuracies in our results. This means that not all the oxygen bubbles released could be counted, as it would be released into the atmosphere rather than the water. A digital light intensity meter should be used instead of analogue; this is so the light intensity can be measured in exact figures. The light energy that is absorbed excites electrons in the pigment molecules.
Module 1, molecules, Cells and Systems, worksheets, Notes, Interactive tasks, PowerPoints, Overheads. This is because both elodeas will most likely have a different number of leaves, and also the leaves will have different surface areas.
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Therefore we can get a better author Joanne Kathleen Rowling idea of how temperature affects the rate of photosynthesis. Museum Conservation Institute, of the Smithsonian Institution, health and science edit, medical Council of India, India's medical education controlling body Magnetic current imaging, using a scanning squid microscope Mass casualty incident, a medical emergency involving more patients than can be easily handled by the crews. After it has acclimatised, reset the stop clock and start the time again. However this wasnt very accurate. Making sure that each experiment gets the same mass in order for the results to be accurate. When the elodea is in water with a temperature of 15oC I predict the rate of photosynthesis will increase from when it was in 0oc. On graph 2 the curve of best-fit peaks at 43oC, where the average rate of oxygen released.2mm3/min. When the elodea is placed in a water bath of 65oC, I predict the rate of photosynthesis will decrease steeply.