Yeast is a single-celled fungus. In bread-making, the yeast starts off respiring aerobically, producing water and also carbon dioxide to make the dough rise. * Yeast also shares many genes with human cells, so if you want to find out what a particular drug does to a certain human gene, you can often test it on yeast cells first. Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. When the air runs out, the yeast begins to respire anaerobically producing ethanol and continuing to produce CO 2. In the menu below are links (in blue) to experiments you can do at home. Conducting the yeast experiment in plastic bottles is a good option for younger kids. Practice pipetting skills. Your first experiment will investigate the effect of sucrose concentration on the rate of cellular respiration in yeast. Lactic acid fermentation is followed by some bacterial species for ATP production (It is the most common method). In an experiment, Sarah found that 1 g of yeast produced 20 cm 3 of carbon dioxide in three minutes when using glucose as a substrate. Yeast can convert sucrose into glucose and use it during cellular respiration. Fermentation (System) is one type of anaerobic respiration. Yeast/Respiration Experiment for Kids. More about Yeast. The smell of freshly baked bread rises from the oven. Yeast cellular respiration lab report (karen krmoyan) (1) 1. Background: All living things carry on the process of cellular respiration. Cellular respiration in yeast cells Káren Krmoyan Mrs. Mariam Ohanyan IB Biology SL 27 May 2016 2. Fermentation. The rate of cellular respiration is proportional to the amount of CO 2 produced (see the equation for fermentation above).. It’s time to explore the science of yeast! In this experiment, we will measure the rate of cellular respiration using either distilled water or one of four different food sources. They won’t be tempted to touch (or eat) the colorful foam and they can see what is happening more easily. My group carried out the experiment with the given sugar concentrations three times in total. Safety Notice. Yeast Experiments Put on your lab coats! Objective: Determine the effect of temperature on the cellular respiration of yeast. Burping Yeast. Definition of Yeast & Cellular Respiration. You will design an experiment to answer the question: Does the concentration of sucrose affect the rate of cellular respiration in yeast? Baker’s yeast is what we used in this experiment. Alcoholic fermentation is a procedure that takes place in yeast cells. Picture a calm Sunday in the kitchen. We will investigate fermentation by measuring the amount of carbon dioxide produced by yeast. 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