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Does the Concentration of CuSO4 Affect the Germination of Barley Seeds? Investigation Analysis When looking at the data collection sheet it can be seen that as the concentration of CuSO4 increases, the percentage of seed germination decreases. This already shows a clear sign that enzyme inhibition has occurred. Looking at the "Average Length of Roots" graph, it can be seen that the concentration of CuSO4 does inhibit the growth of roots significantly because the average root length drops sharply after the 0% solution. However some of my results nay have been anomalous because the decline is far too steep to draw any reliable conclusions. When comparing this graph to the "Average Length of Shoot" graph, it can be seen that the average shoot length for each concentration depreciates at a steadier rate; perhaps then, heavy metal ions affect enzymes that are responsible for root growth more than they affect those that...

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