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An Investigation Into The Factors Affecting The Rate Of Photosynthesis.
Member rating: No Rating | Words: | Submitted: Mon Feb 23 2004
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An Investigation Into The Factors Affecting The Rate Of Photosynthesis Aim The aim of this investigation is to find out which factors determine the rate of photosynthesis in pondweed. Equipment List & Diagram: * Sodium Hydrogen Carbonate * Lamp * Scales * Beaker * Photosynthometer * Water * Spatula * Stop Clock * Pondweed (Elodea) * Retort Stand with Clamp Possible Variables: The key variables that may determine the rate of photosynthesis are: * Light Intensity - The lamp's distance from the beaker containing water shall be varied. * Concentration of CO² - Sodium Hydrogen Carbonate (NaHCO²) shall be added to the H²O in the beaker. Amounts of NaHCO² shall be varied. * Temperature - This is not an option in this investigation because altering the temperature may denature the plant's enzymes, thus killing the pondweed. Measurements: The following measurements will be taken during the experiment: * Amount of NaHCO² (g) * Light Intensity (calculated via the formula 1/d²) * Time Taken (secs/mins) * Amount of O² Given Off By Plant The results...
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