Title: Does Light Intensity increase the Rate of Photosynthesis? by Reona Ido
Headings: Does Light Intensity increase the Rate of Photosynthesis?
Does Light Intensity increase the Rate of Photosynthesis?
Outline
15 frames
Reader view
Experiment Complete!
Sources
Improvements to make
The Scenario:
How can this be applied in the real world?
Things to remember!
Graph
How does light intensity affect the Rate of Photosynthesis?
Limiting Factors
Hypothesis
How to conduct the experiment
Things Needed for the Experiment to work:
Michael Kwon, Reona Ido
Biology 11
Mr. Lawrence
Equation for Photosynthesis:
6 CO2 (g) + H2O (l) -> C6H12O6 (aq) + 6O2 (g)
Variables

Content: 1Watts per gallon and 3Watts per gallon, make sure you use the variable power supply)
Set the timer to 1 min. Count the bubbles that forms in 1 min
Record results
2 Elodea plants
2 5 gallon water container
2 lamps
2 big beakers
Timer/stopwatch
2 variable power supply
Using bigger gallons so that the temperature wont increase/decrease easily (temperature affects the rate of photosynthesis)
Repeat experiment more than once
Human errors, e.g. recording of the time. increase the values of light intensity tested on the plant
Measurement is not too accurate. How can this be applied in the real world? Eutrophication (a process where water bodies receive excess nutrients that stimulate a bloom of algae)
Plants produce oxygen at a limited pace
Controls phytoplankton and moss. There is always a way out" -Confucius
Reona and Michael have been growing aquatic plants for a while, specifically Elodeas which is a type of pond weed. Michael states that a higher light intensity would increase the rate of photosynthesis, however, Reona disagrees. They both decide to test this theory out by conducting an experiment. Things to remember! When there is no light, photosynthesis can't occur since light is the activation energy needed for plants to convert carbon dioxide and water to glucose and oxygen
When there is no light, the plants would use up oxygen therefore emitting carbon dioxide bubbles instead.