Measuring Photosynthesis

Measuring Photosynthesis: The Effects of Green and White Light Abstract: In this experiment we will be measuring the amount of oxygen produced in photosynthesis by white and green light. We began by placing the elodea in the 250ml flask along with the NaHCO3 and a stopper and a bent piece of glass tubing. We turned the lamp on and timed it for 10 minutes. After 10 minutes, we re-marked the tubing with the wax pencil. The releasing …

…NaHCO3 (sodium Bicarbonate) 2 6cm cuttings of elodea 1000ml beaker filled with distilled water 250 ml flask 1test tube 1 stopper 1 bent piece of glass tubing 1 red wax pencil 1 ruler 1 lamp 1250 watt light bulb Results and conclusion: The rate of photosynthesis works best with the white light, because the rate of photosynthesis was much higher under the white light. Also none of the photosynthetic pigments absorb green light, this is why plants appear to be green. (Table attached)