Your first experiment will investigate the effect of sucrose concentration on the rate of cellular respiration in yeast. My group carried out the experiment with the given sugar concentrations three times in total. Alcoholic fermentation is a procedure that takes place in yeast cells. In this experiment, we will measure the rate of cellular respiration using either distilled water or one of four different food sources. The smell of freshly baked bread rises from the oven. When the air runs out, the yeast begins to respire anaerobically producing ethanol and continuing to produce CO 2. Picture a calm Sunday in the kitchen. Yeast can convert sucrose into glucose and use it during cellular respiration. Burping Yeast. You will design an experiment to answer the question: Does the concentration of sucrose affect the rate of cellular respiration in yeast? Yeast cellular respiration lab report (karen krmoyan) (1) 1. It’s time to explore the science of yeast! More about Yeast. IMPORTANT: Read the background and procedure then do the pre-lab questions before performing the experiment. The rate of cellular respiration is proportional to the amount of CO 2 produced (see the equation for fermentation above).. Safety Notice. Background: All living things carry on the process of cellular respiration. Baker’s yeast is what we used in this experiment. However, anaerobic respiration does not produce or arise as many ATP (System). In bread-making, the yeast starts off respiring aerobically, producing water and also carbon dioxide to make the dough rise. Cellular respiration in yeast cells Káren Krmoyan Mrs. Mariam Ohanyan IB Biology SL 27 May 2016 2. Objective: Determine the effect of temperature on the cellular respiration of yeast. Lactic acid fermentation is followed by some bacterial species for ATP production (It is the most common method). In the menu below are links (in blue) to experiments you can do at home. * 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. Fermentation. Practice pipetting skills. Fermentation (System) is one type of anaerobic respiration. We will investigate fermentation by measuring the amount of carbon dioxide produced by yeast. Yeast/Respiration Experiment for Kids. 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. 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. They won’t be tempted to touch (or eat) the colorful foam and they can see what is happening more easily. Definition of Yeast & Cellular Respiration. Yeast is a single-celled fungus. 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