ANAEROBIC AND AEROBIC METABOLISM Lab 5 BCEM 341 – Winter 2014 Nebojsa Kuljic 10066717 Partner: Kendra Skalyn B02 Introduction Cells of all organisms can obtain energy through the combustion of sugars‚ either in the presence of oxygen (Aerobically) or without oxygen (Anaerobically). The purpose of this experiment was to perform a quantitative investigation of the differences between Anaerobic and Aerobic metabolism using pea seedlings and yeast organisms [1]. Aerobically
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1) Discuss the social identity issues present in the case Social Identity theory basically is a theory that explains self-concept (what a person thinks about themself and how they analyze themselves) to be a combination of personal identity – their unique characteristics and social identity – their membership in different social groups. There are numerous Social Identity issues in the case. Firstly‚ Catherine’s father is an accountant which is one of the factors that she chooses to be an accountant
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Yeast Experiment – Temperature Yeast fermentation is affected by temperature as an outcome of the many different temperatures that yeasts are exposed to. The accepted value for yeasts optimum temperature is approximately 66.667 degrees Celsius. If yeast is exposed to their optimum temperature‚ then this would create the most amount of fermentation. In this experiment however‚ the yeast were exposed to temperatures below their optimum. The chemical reactions within yeast are facilitated by enzymes;
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The Effect of Temperature on the Rate of Yeast Respiration Abstract Carbon dioxide is a waste product of yeast respiration. A series of experiment was conducted to answer the question; does temperature have an effect on yeast respiration? If the amount of carbon dioxide is directly related to temperature‚ then varying degrees of temperature will result in different rates of respiration in yeast. The experiment will be tested using yeast and sugar at different water temperatures. I
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In this lab‚ the class tested the effect of temperature on the rate of fermentation in yeast by measuring the height of CO2 produced in a graduated cylinder at varying degrees Celsius. Yeast can perform cellular respiration and fermentation‚ the first needing oxygen (aerobic) and the second not (anaerobic). Cellular respiration is the normal way human bodies’ make energy‚ but when lacking oxygen‚ cells undergo fermentation‚ which creates less energy than respiration‚ CO2‚ and lactic acid (though
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AP Biology Sunday‚ October 24‚ 2010 Enzyme Lab Write-Up Purpose: To observe how an enzyme affect the speed of chemical reaction. To describe how the concentration of an enzyme affects its ability to work. Hypothesis: Depending on the concentration of the catalase which the disk is soaked in‚ it will have a direct correlation on the rate of hydrogen peroxide being broken down into oxygen gas. Prediction: Since the rate of reaction can be lowered by the addition of
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Background Our citizen population reached a turning point in 2012‚ as our first cohort of Baby Boomers turned 65. Singapore will experience an unprecedented age shift between now and 2030. Over 900‚000 Baby Boomers‚ more than a quarter of the current citizen population‚ will enter their silver years. From 2020 onwards‚ the number of working-age citizens will decline‚ as older Singaporeans retiring outnumber younger ones starting work. At our current low birth rate‚ our citizen population will age rapidly
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“too acidic to justify the worth of drinking every morning for the miniscule amounts of vitamin C it contains” (Dr. Kenny and Henderson). It has been found that orange juice‚ while it does contain vitamin C‚ does not contain enough vitamin C to live up to the “super food” standard that was set for it in the past. Instead of assisting one’s immune system‚ it has now been discovered that due to the naturally high acidity of orange juice‚ they actually are detrimental to ones health. Drinking orange
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Josh P. AP Biology 12-10-13 Lab Writeup The Effect of Transformation of pGLO in Bacteria Background/Objectives/Hypothesis: Genetic transformation is a process that primarily is inserting new DNA into an organism to change that organism’s trait. This process has many useful benefits when used correctly in different organisms. In this lab‚ bacteria was transformed by inserting DNA for Green Fluorescent Proteins. The DNA for these proteins were taken from bioluminescent jellyfish Aequorea
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hypotheses based on predictions questions. First‚ yeast will metabolize sugar and produce a gas. This is because yeast is a living organism and all living organisms like yeast must use energy (such as sugar) to obtain energy. Yeast will metabolize sugar and gives off carbon dioxide as a by-product. For the second hypothesis‚ we were expecting that yeast will produce a gas when sugar is available. For the third hypothesis‚ we did not expect yeast to produce a gas when no sugar or other food is available
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