ibstudent77 Posted September 25, 2015 Report Share Posted September 25, 2015 Hey guys, My Bio IA is testing the effect of different concentrations of copper sulfate and lead nitrate on the rate of photosynthesis in an aquatic plant. I've tried with concentrations of 0.1%, 0.3%, 0.5%, 0.7%, 0.9%. However, at these concentrations, there was no photosynthesis. My teacher suggested the concentrations are too high for an aquatic plant to survive in.My question is: What concentrations would be appropriate so there's a difference in the rate of photosynthesis, without making photosynthesis inhibitory? Looking forward to your replies, really need help! Reply Link to post Share on other sites More sharing options...
ibstudent77 Posted September 25, 2015 Author Report Share Posted September 25, 2015 For some reason this posted twice, I've taken the other one down. Reply Link to post Share on other sites More sharing options...
MuskanKararha Posted October 16, 2015 Report Share Posted October 16, 2015 Try using 0.01, 0.02, 0.05, 0.10 and 0.15 Reply Link to post Share on other sites More sharing options...
ibstudent77 Posted October 16, 2015 Author Report Share Posted October 16, 2015 Try using 0.01, 0.02, 0.05, 0.10 and 0.15If you don't mind me asking, where'd you get these values? Reply Link to post Share on other sites More sharing options...
MuskanKararha Posted December 27, 2015 Report Share Posted December 27, 2015 My teacher suggested us to use those values, as they yield the best results for oxygen/ CO2 volumes with probes. I'm guessing that's what you will use to collect your data to calculate the rate of photosynthesis. Reply Link to post Share on other sites More sharing options...
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