Alpman, Ayşim (2015) Is the photosynthesis rate of Elodea Canadensis affected by electrical field's presence and varying strength? Other thesis, TED Ankara Koleji.
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Abstract
Living organisms are known to be affected by “electrosmogs” which refers to the electrical and magnetic fields in the earth. These fields are said to have a bad impact on the human health yet their effect on the other living organisms like plants is not taken into account. Even if the presence of the studies on the magnetic fields' effect to the plants cannot be denied, there is no systematic study on the electrical field effect to the plants' photosynthesis rate. Seeing this absence, this essay is centered on the effect of varying electrical field’s strength on Elodea canadensis. E. canadensis is chosen because it is a common plant that can be found in many aquatic ecosystems, an important source of O2 for the water ecosystem and an indispensable part of the primary production of the ecosystem. In order to answer the research question, a fixed number of elodea was subjected to the different electrical field strengths, and the dissolved O2 concentration in the water was measured with data loggers in order to determine the photosynthesis rate. At the end of the experiment, when the results were analyzed by using ANOVA, it is found that as the electrical field strength increased, the dissolved O2 concentration didn't change significantly indicating the rate of photosynthesis is not affected by the increase in the electrical field strength. Thus, the analysis of the data does not support the hypothesis. However when the means of the experimental groups photosynthesis rates are compared to the control group' s, it can be said that if Elodea Canadensis was exposed to higher electrical field strength , then a obvious change would be observed. The hypothesis might not supported due to some systematic and random errors or simply because of inadequacy of the strength of the electrical field that could not interfere with the photosynthesis procedure.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | Supervisor: Sevim Saral, IB Notu: C |
| Uncontrolled Keywords: | Living organisms, electrosmogs |
| Subjects: | Q Science > QH Natural history > QH301 Biology |
| Depositing User: | Kamil Çömlekçi |
| Date Deposited: | 20 Aug 2015 08:28 |
| Last Modified: | 20 Aug 2015 08:28 |
| URI: | http://tedprints.tedankara.k12.tr/id/eprint/583 |
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