Carbon Dioxide Production of Yeast in Different Sucrose Solutions Internal Assessment Azayleah Delgado October 27‚ 2013 Period 2 Carbon Dioxide Production of Yeast in Different Sucrose Concentrations Raw Data Tables: Sucrose concentration (%) Volume of CO2 captured (mL) 0 minutes 5 minutes 10 minutes 0 4.5 4.5 5.0 2.5 4.0 4.5 4.5 5 4.0 4.0 4.5 7.5 4.0 4.5 4.5 10 3 3.5 3.5 Table 1: Trail 1 of Volume of CO2 captured by sucrose concentration Sucrose concentration
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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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purpose of this experiment was to see if different temperatures affect the growth rate of crystals The information
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and many comedies. One comedy he wrote was the play Measure for Measure. It can be argued that because of the deep gloom and moral concerns underlying this play‚ Measure for Measure can be considered a problem play. Many questions are raised in the play about justice and mortality and these questions also lead the reader to think why the play was named Measure for Measure and not something else. There are many ways the title Measure for Measure‚ by William Shakespeare‚ can be interpreted such as:
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Science Form 3 note SMART STUDY - GOOD LUCK Teacher zaidi@maher2010 Chapter 1: Respiration Respiration Human Breathing Mechanism Transport of oxygen Importance of a healthy respiratory system Respiratory system Diffusion of oxygen by blood Harmful substances lungs Transport of oxygen by blood Effects of pollutants inhalation Diffusion of oxygen into cell Respiratory diseases. Good habit to improve air quality. exhalation Human Respiratory
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Effect of Substrate Choice On Growth Of Mealworms Abstract: The experiment is designed to show which substrate A or B will better nourish a mealworm. A mealworm was placed in each substrate for a period of seven days and the change in mass from Day 1 to Day 7 was compared. The data was compiled and statistically analyzed. The experiment failed to reject the null hypotheses that there would be no difference in the two substrates regarding meal worm growth
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Comparing Fermentation Rate of the S. cerevisiae Yeast in the presence of MgSO4‚ NaF and Sodium Pyruvate Hypothesis In the fermentation of rate of yeast‚ S. Cerevisiae‚ there will be a higher/ faster rate of ethanol production‚ However‚ using catalytic enzymes would make the rate more faster‚ and MgSo4 will have a higher rate of CO2 than that of NaF and Sodium pyruvate as it act as a more better catalytic enzyme than the others. Methods Preparation of Tubes A solution of yeast and glucose was prepared
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Chapter 6-Intro to Metabolism METABOLISM= all the chemical reactions in an organism CATABOLIC PATHWAY (CATABOLISM)• release of energy by the breakdown of complex molecules to simpler compounds EX: digestive enzymes break down food ANABOLIC PATHWAY (ANABOLISM) • consumes energy to build complicated molecules from simpler ones EX: linking amino acids to form proteins ORGANISMS TRANSFORM ENERGY ENERGY- capacity to do work KINETIC ENERGY- energy of moving objects POTENTIAL ENERGY- energy
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only if O2 is present Anaerobic Also called Lactic acid fermentation Products are lactic acid + 0 ATP Redox NAD+ NADH Oxidized molecule education products C6H12O6+6O26CO2+6H20+ATP Cellular Respiration Glycolysis in cytoplasm STEPS (Glucose being substrate‚ substrate level phosphorylation occurs) Phosphorylation addition of phosphate 6 carbon glucose one phosphate added rearranged to fructose added second phosphate fructose 1‚6- bisphosphate 2 ATPs 2 ADP deficit
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The methylene blue staining procedure is used to measure yeast viability based on the assumption that the methylene blue will enter the cells and be broken down by living yeast cells that produce the enzymes which breaks down methylene blue‚ leaving the cells colourless. The non- viable cells do not produce this enzyme (or enzymes) and as such the methylene blue that enters the cells are undegraded causing the cells to remain coloured (the oxidized form concentrates intracellularly). The coloured
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