The cuvettes were tested individually at different wavelengths and intensities to find the optimal rate of photosynthesis by using a spectrophotometer, measuring the greatest change in absorbance. Independent variable Time is the independent variable and will be measured with a stop watch.
The rate of photosynthesis is determined by the number of bubbles formed by the Elodea plants. E J H Corner, Introduction Every species on earth needs some kind of energy sources in order to survive.
Two blanks were prepared for the entire experiment one for intensity, one for wavelength. A little bit of the slope change is shown at the wavelength of nm; however, during the experiment, the wavelength at nm showed no change.
Experimental Design This experiment will look at the affect of light intensity on the rate of photosynthesis on Elodea plants. Reiss, Michael Roberts, Grace Monger, From this experiment, two data charts and four graphs were obtained. The optimal reaction rate was found at 50?
The efficiency of photosynthesis can be measured by the amount of oxygen bubbles formed during a given amount of time. Springer, New York, New York. The optimal reaction rate was found at nm, and no reaction was found at nm.
From the given information, the hypothesis was that the optimal reaction rate was expected to be at the wavelength near nm and nm.
The experiment showed poor absorption made by pigments at wavelengths of nm and nm. The control cuvette for intensity was the same as the experimental cuvette for intensity.
The area between the thylakoids and the inner membrane is called the stroma Campbell, Too much light may cause plants to "burn out" while too little light will not provide enough light for optimal photosynthesis activity. The intensity level at 5 and 50?
In my opinion, this experiment was pretty successful. The contamination of the control cuvettes, while the aluminum was removed for measuring absorbance by spectrophotometer would cause inconsistent data. For instance, in Figure 1 and Figure 3, it shows that the maximum reaction rates are at nm and nm.
The lab experiment deals with wavelength and intensity, which are the two most important variables in the photosynthesis process.
The student should also work on the experiments more precisely; for example, reading and measuring skills. Another unexpected result was the absorbance change in the control cuvettes.
Dependent variables The dependent variable will be the number of bubbles formed and floated to the top of the test tube. The oxygen bubbles are a product of photosynthesis.This experiment will look at the affect of light intensity on the rate of photosynthesis on Elodea plants.
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Cellular Respiration and Photosynthesis ; Photosynthesis Lab Report. LIGHT INTENSITY AND PHOTOSYNTHESIS LAB REPORT GROUP MEMBERS: MARITONI VALENCIA, SANGITA TAMANG, RYUTARO SEIKI AND MAO INTRODUCTION: Light intensity is one of the factors affecting the rate of photosynthesis. Other factors are concentration of carbon dioxide, temperature and to a lesser degree.
Transcript of Effects Light has on the rate of Photosynthesis Conclusion and Anlysis By: Sarah Boden, Makayla Spillman, Mackenzie Bissell Does Light Affect the rate of Photosynthesis?
Introduction Real World connections Light intensity is a factor in the rate of photosynthesis, which is the production of simple sugars from carbon dioxide and. Photosynthesis Lab Report Abstract: Photosynthesis is a natural process all plants undergo to create energy from light.
In a plant, photosynthesis creates oxygen as a byproduct, and cellular respiration uses oxygen to make water. The speed or rate of both these processes combined is called “net photosynthesis”.
We wanted to see if light 91%(58). Photosynthesis and Cellular Respiration Nina R. McCray May 5, Biology Lab (SCIEA) LaDonna McCowan-Ferrier Photosynthesis and Cellular Respiration Lab Report Introduction This is an investigation of the effect of the intensity of light (photosynthesis) have on the rate of cellular respiration (measured as the number .Download