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Key Stage 4 Photosynthesis Investigation

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Introduction

Key Stage 4 Photosynthesis Investigation Aim: The aim is to find out weather light intensity affects the rate of photosynthesis. Prediction + Theory/Hypothesis: I predict that light intsinty (brightness) does affect the rate of photosynthesis. As the intensity gets higher I expect that the rate of photosynthesis will increase, until it can't increase any more dew to limiting factors such as Co2 levels + temperature Plan/Method: 1. ...read more.

Middle

2. Set the voltage on the power pack and then turn on the power pack. 3. Time for 1 min, then, when 1 min is up, turn off the power pack. 4. Use the micro-burette and record the results. ...read more.

Conclusion

4 6.25 25.15 15.70 6 25.14 30.15 20.55 8 62.70 100.48 40.67 10 75.45 125.70 55.85 12 100.20 75.60 85.75 Conclusion: From my results I can conclude that my prediction was correct. My prediction about limiting factors such as Co2 level + temperature were also correct. Evaluation: I think that my method was suitable for this investigation as you can see from my results. I think that my investigation supports my results and my conclusion ...read more.

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Related GCSE Green Plants as Organisms essays

  1. Photosynthesis Investigation

    I want to know if the intensity of light is high, then will the rate of photosynthesis will be faster. Hypothesis The effect of light intensity on the rate of photosynthesis Photosynthesis depends on the amount of light available. Increase in light intensity increases the rate of photosynthesis and less of it decreases its rate.

  2. How temperature affects the rate of photosynthesis.

    Key Variables: The factors to be changed are: Variable How will it be changed Temperature The aim of the experiment is to observe the changes in the rate of photosynthesis when subjected to change in temperatures. So the temperature has to be changed to observe its affect on the rate of photosynthesis.

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