effect of the concentration of hydrogen peroxide on catalase Aim: to examine how the concentration of the hydrogen peroxide affects the rate of reaction Hypothesis: The substrate concentration will determine the rate of reaction. The reaction will increase as the concentration increases‚ but from a certain concentration‚ the rate will maintain the same rate Materials: 3% hydrogen peroxide 6% hydrogen peroxide catalase round metal basin measuring cylinder thermometer conical flask rubber
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Population growth in yeast Aim: To study the population growth rate of yeast‚ a microorganism Saccharomyces cerevesiae Variables: | | Units | Independent variable | Time the readings were taken | Hours | Dependent variable | Absorbance (increasing yeast population) | - | Controlled variables | Units | Possible effects on result | The wave lengths | Nanometer | since the transmission and absorbance is being measured at a specific wave length‚ so if we change it the results
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revues.org/2544 Act 3 sc 2 l83-164 1) Who / where / when & possibly why 2) Obvious elt : dramatic irony => 2 levels of reading 3) Lucio / Duke both serve as go-btwn in the play‚ go from one group to another. Both contribute to knitting all different trends in play. 4) Importance of use of words‚ which is all that’s going on in this particular extract 5) Lucio paired with other char‚ all sorts of unlikely combinations in play‚ for eg with Isab at convent. Here too‚ unlikely combination Lucio
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Aerobic respiration is the release of energy from glucose or another organic substrate in the presence of Oxygen. Strictly speaking aerobic means in air‚ but it is the Oxygen in the air which is necessary for aerobic respiration. Anaerobic respiration is in the absence of air. Here is a molecular model of a glucose molecule. You do not need to memorise the diagram for you GCSE exam‚ but it should help you to understand that a molecule of glucose contains six atoms of Carbon (shown in blue)‚ twelve
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C11356616 Lab Partners Name: Charlotte Weir Experiment Name: Yeast Fermentation Experiment Date: 2nd and 9th November 2011 Submission Date: 23rd November 2011 Title Yeast Fermentation Purpose To allow for fermentation of the yeast‚ Saccharomyces Cerevisiae‚ in Grape and Apple juice. Materials provided Test-tube containing Grape juice and a Durham tube Test-tube containing Apple juice and a Durham tube Plate culture of the yeast‚ Saccharomyces Cerevisiae Sterile swabs Method As per
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BIOLOGY A REPORT ON RESPIRATION IN INVERTEBRATES COMPILED & PRESENTED BY DEPARTMENT OF ANIMAL AND ENVIRONMENTAL BIOLOGY 2012/2013 SESSION COURSE: FSB201 (CELL BIOLOGY) COURSE LECTURER: DR. NOUTCHA DATE : 7TH MARCH‚ 2013 INTRODUCTION Respiration is one of the characteristics of ALL LIVING THINGS. In the simplest terms‚ "respiration" simply means "breathing". But more formally‚ the term depends on what type of respiration been referred to. Essentially‚ "respiration" refers to gaseous exchange
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Yeast which is also known as Saccharomyces Cerevisiae is a unicellular eukaryotic Fungi means that is made up of one cell with a nucleus(“What is Yeast”).Yeast is a very practical product that is used in mainy way like when baking Yeast helps raise the dough and also yeast is used in the process of making wine.The Reason why yeast was chosen to was to see how yeast can metabolize different sugars and how much Co2 they release when when metabolizing.To test the yeast at the lab we used 4 different
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There are more than one forms of fermentation; yeast fermentation is probably the most common method. This process is used in many everyday products today. Yeast was first discovered in 1676‚ but was used before. It has also led to numerous scientific advances. Yeast expands‚ especially well with a good amount of sugar‚ the more of the amount the greater it expands. Yeast is a single-celled organism‚ a fungus to be more specific. They consume carbohydrates‚ mainly sugars‚ and produce carbon dioxide
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Yeast fermentation Hypothesis - Yeast cells perform fermentation when supplied with a source of energy. Materials Two 250 mL Erlenmeyer flask Water‚ Sugar solution Bromothymol blue solution plastic tubing Rubber tubing Two rubber stopper 50 mL graduated cylinder Medicine dropper Blank slide
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Saccharomyces yeast is in conflict with the cell host‚ this plasmid cost the host through using the cells’ resources ; meaning a burden on the host to synthesize more proteins as well as increasing the amount of DNA the host cells needs to accommodate. What is the key result of this experiment or study? The results of the experiment come to prove that the higher plasmid copy numbers of 2 μm come at a consequence of a greater fitness cost to the host cell‚ seen through a decrease in growth rate. What
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