Çığırgan, Ege (2013) Investigating The Effect Of Varying Wavelengths Of Visible Light On The Rate Of CO2 Gas Production With Ethyl Alcohol Fermentation Of Saccharomyces Cerevisiae Cells In A Certain Time. Other thesis, TED ANKARA COLLEGE FOUNDATION PRIVATE HIGH SCHOOL.
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Abstract
A characteristic feature of protist cells is that they favor dark environments. The reason for this behavior is that UV radiation annihilates these cells. This phenomenon provided the basis of the research about ethanol fermentation that this paper deals with. Although there are extensive researches about effect of UV radiation there is little research about the effect of differing wavelengths of visible light on these creatures. Since the yeast cells are one of the best known organisms in science and UV radiation affects them terribly, the scope of the experiment is chosen as Saccharomyces Cerevisiae cells. The objective of this study was to observe whether the volume of carbon dioxide produced by the S.Cervisiae during fermentation, in a certain time, is affected by varying wavelengths of visible light spectrum. Thereupon, fixed masses of yeast were put into glucose solutions in respiration chambers illuminated by different wavelengths of visible light for ten minutes and the alteration in the concentration of carbon dioxide were noted. It was found that as wavelength of visible light increase the carbon dioxide formation of S.Cerevisiae cells increase. However it was as the wavelength of the visible light increases its affect on the ethanol fermentation decreases. The highest carbon dioxide formation rate is achieved by the cells which were put in respiration chambers lighted by the wavelength of 460 nanometers with an average of 29154 ppm. The maximum wavelength which was applied was 650 nanometers and the result acquired was 17646 ppm. Overall, the fit of the data was a negative correlation supporting the hypothesis that the increase in wavelength will decrease the fermentation rate. Possibly, the reason of this effect that increasing wavelength of visible light has on this species is that it hastens the process by giving energy to the species
| Item Type: | Thesis (Other) |
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| Additional Information: | Name of the Supervisor: Hasan Altınışık, IB Notu: B |
| Uncontrolled Keywords: | protist cells, Effect Of Varying Wavelengths, Ethyl Alcohol Fermentation |
| Subjects: | Q Science > QH Natural history > QH301 Biology |
| Depositing User: | Users 114 not found. |
| Date Deposited: | 17 Sep 2013 07:51 |
| Last Modified: | 17 Sep 2013 07:51 |
| URI: | http://tedprints.tedankara.k12.tr/id/eprint/355 |
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