The Effect of Light Intensity on the Rate of Photosynthesis of Elodea in the Aquarium
Aim
The aim of this experiment was to investigate the relation between the light intensity and photosynthesis rate of Elodea in an aquarium using a simulator.
Background
Photosynthesis is metabolic pathway in which plants use carbon dioxide and water to produce glucose by the aid of light energy from the sun. Light energy is usually absorbed by chlorophyll; a green pigment in plants. The equation of photosynthesis is as follows: Although aquatic plants live in different conditions compared to those who live in air, they can still perform photosynthesis due to the availability of carbon dioxide, water, and light. However, the net photosynthesis will be lower than tat …show more content…
Hypothesis:
If the light intensity increased, then the number of bubbles will also increase, as more energy will be obtained from light, until a plateau is reached as other factors will be limiting the process of photosynthesis.
Independent Variable:
Light intensity
Dependent Variable:
Number of bubbles produced
Controlled Variables:
Time of bubble collection
Temperature
Materials:
University of Reading's Photosynthesis Simulator (http://www.reading.ac.uk/virtualexperiments/ves/preloader-photosynthesis-full.html)
Stop watch
Safety:
Since this investigation was done using an online simulator, there are no safety concerns.
Procedure:
1. Five different distances from the Elodea were chosen.
2. The ruler was set to a certain distance.
3. A stop watch was set (1 minute per trial) at same time with starting the simulator.
4. The bubbles were counted and recorded.
5. Steps 2-4 were repeated for different distances.
Raw Data Collection
Distance between light source and plant Number of bubbles produced per 60 seconds Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Average number of
Aim
The aim of this experiment was to investigate the relation between the light intensity and photosynthesis rate of Elodea in an aquarium using a simulator.
Background
Photosynthesis is metabolic pathway in which plants use carbon dioxide and water to produce glucose by the aid of light energy from the sun. Light energy is usually absorbed by chlorophyll; a green pigment in plants. The equation of photosynthesis is as follows: Although aquatic plants live in different conditions compared to those who live in air, they can still perform photosynthesis due to the availability of carbon dioxide, water, and light. However, the net photosynthesis will be lower than tat …show more content…
Hypothesis:
If the light intensity increased, then the number of bubbles will also increase, as more energy will be obtained from light, until a plateau is reached as other factors will be limiting the process of photosynthesis.
Independent Variable:
Light intensity
Dependent Variable:
Number of bubbles produced
Controlled Variables:
Time of bubble collection
Temperature
Materials:
University of Reading's Photosynthesis Simulator (http://www.reading.ac.uk/virtualexperiments/ves/preloader-photosynthesis-full.html)
Stop watch
Safety:
Since this investigation was done using an online simulator, there are no safety concerns.
Procedure:
1. Five different distances from the Elodea were chosen.
2. The ruler was set to a certain distance.
3. A stop watch was set (1 minute per trial) at same time with starting the simulator.
4. The bubbles were counted and recorded.
5. Steps 2-4 were repeated for different distances.
Raw Data Collection
Distance between light source and plant Number of bubbles produced per 60 seconds Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Average number of