Try this! Burping bugs

McRae, Mike
March 2009
Teaching Science: The Journal of the Australian Science Teachers;Mar2009, Vol. 55 Issue 1, p59
Academic Journal
Science Experiment
The article presents a science experiment that demonstrates the impact of temperature on the amount of gas produced by a microbe-like yeast. The materials needed and the step-by-step procedure in implementing the experiment are detailed. It explains the process of aerobic respiration, production of carbon dioxide gas and production of energy in yeast. The role of temperature in the function of yeasts and bacteria and its implications for food preservation are also explained.


Related Articles

  • 13C-discrimination during microbial respiration of added C3-, C4- and 13C-labelled sugars to a C3-forest soil. Ekblad, Alf; Nyberg, Gert; Högberg, Peter // Oecologia;Apr2002, Vol. 131 Issue 2, p245 

    We tested whether 13C-discrimination during microbial respiration, or during CO2 sampling in the field, can explain changes observed in the δ13C of emitted CO2 that follow the addition of C4-sucrose, as a microbial substrate, to the soil of a C3-ecosystem. We approached this problem by adding...

  • Non-phototrophic CO 2 fixation by soil microorganisms. Miltner, Anja; Kopinke, Frank-Dieter; Kindler, Reimo; Selesi, Draženka; Hartmann, Anton; Kästner, Matthias // Plant & Soil;Feb2005, Vol. 269 Issue 1/2, p193 

    Although soils are generally known to be a net source of CO2 due to microbial respiration, CO2 fixation may also be an important process. The non-phototrophic fixation of CO2 was investigated in a tracer experiment with14CO2 in order to obtain information about the extent and the mechanisms of...

  • The Missing Carbon Link. Pollard, Peter // Australasian Science;Aug2008, Vol. 29 Issue 7, p35 

    The article states that the increasing amount of carbon dioxide that plants use does not match by what they return to the atmosphere via microbial respiration. It is stated that microbes recycle nutrients including carbon dioxide which is needed for man's survival on Earth. The author argues...

  • Effect of CO2 enrichment on bacterial production and respiration and on bacterial carbon metabolism in Arctic waters. Motegi, C.; Tanaka, T.; Piontek, J.; D. Brussaard, C. P.; Gattuso, J. P.; Weinbauer, M. G. // Biogeosciences Discussions;2012, Vol. 9 Issue 10, p15213 

    The impact of rising carbon dioxide (pCO2) on bacterial production (BP), bacterial respiration (BR) and bacterial carbon metabolism was investigated during the mesocosm experiment in Kongsfjord (Svalbard) in 2010. The mesocosm experiment lasted 30 days and nine mesocosms with pCO2 levels ranging...

  • The bubble counter: Computer data logging for yeast fermentation experiments. O'Neill, Phil // Australian Science Teachers Journal;Jun95, Vol. 41 Issue 2, p55 

    Provides a simple method for determining the rate of respiration of yeast during fermentation using computers for measurement and control. Use of Tecon's event counting facility; Description of the counter; Data displayed through importing technique into a spreadsheet; Instrument used for...

  • Factors of spatiotemporal variability of CO fluxes from soils of southern taiga spruce forests of Valdai. Karelin, D.; Pochikalov, A.; Zamolodchikov, D.; Gitarskii, M. // Contemporary Problems of Ecology;Dec2014, Vol. 7 Issue 7, p743 

    Factors determining the spatiotemporal variability of carbon dioxide emission from soil on various scales (from hours and days to seasons of the year and multiple years, and from microbiotopes to mesobiotopes) were identified using the results of a five-year study in the southern taiga spruce...

  • Biosphere 2 as Voyage of Discovery: The Serendipity from Inside. Walford, Roy L. // BioScience;Mar2002, Vol. 52 Issue 3, p259 

    Comments on the argument that Biosphere 2 in Arizona can be considered from the integrative as well as the analytic approach, and argues for the integrative approach illustrated by Biosphere 2. Study on human nutrition which took place on researchers in Biosphere 2; Discussion of studies on...

  • Dynamics of CO2-driven lake eruptions. Zhang, Youxue // Nature;1/4/1996, Vol. 379 Issue 6560, p57 

    Reports on experiments which show that decompression of CO2-saturated water is able to power explosive eruptions. Example of the release of carbon dioxide from Lake Nyos in Cameroon in August 1986; Dynamics similar to those of water-driven volcanic eruptions; Findings from experiments.

  • Cooling it. Pearce, Fred // New Scientist;06/20/98, Vol. 158 Issue 2139, p10 

    Claims that large balls of submerged concrete could be the answer to global warming. Algae that would attach itself and grow on the concrete hemispheres, or reef balls; Extraction of carbon dioxide (CO2) from the water by the algae; Replenishment of the CO2 in the water by extracting it from...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics