* Would yeast produce more carbon dioxide with the presence of sugar at room temperature or in an incubator? | -Observing Cellular respiration in yeast cells. | Yeast Lab Background Information: Yeast is a tiny unicellular fungus that obtains energy from outside sources (a heterotroph) mostly sugars in order to grow and reproduce. Yeast is often used in bread dough to make the dough rise. With the presence of oxygen a yeast cell creates energy by performing cellular respiration and
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EXPERIMENT Materials 200 Toothpicks Timer Tape Controls 50 toothpicks per trial. 120 seconds per trial. The same brand of toothpicks. One toothpick broken at a time (except for Mutation Trial 2). One toothpick broken into two pieces equals one reaction. Broken toothpicks cannot react again. (Toothpicks can only be broken once) The toothpicks are broken between the thumb‚ index‚ and middle finger (toothpickase). Break two toothpicks at a time (Trail 3). Tape the index finger and thumb. (Trail 2)
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Research & Design in Psychology / G Faculty of Health‚ University of Canberra LAB REPORT COVER SHEET Instructions: 1. Complete these details and the declarations electronically. 2. Insert this sheet at the start of your lab report. 3. Submit the entire assignment‚ including this coversheet‚ as one file via the lab report drop-box on Moodle. 4. For more information‚ see Lab report guidelines. |STUDENT NAME:
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Introduction: The purpose of this lab is to see how the colour of an apple would change (browning) over time‚ when placed in different conditions. When referring to the term “browning”‚ it is meant to imply the change of colour that occurs inside the apple‚ giving an appearance that is distasteful (Di Guardo et al.‚ 2013). Specifically‚ within this lab the apple was cut into 4 pieces with 3 pieces being placed on a weigh boat‚ and a 4th piece placed in a beaker of water. These weigh boats were
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Ryan Kawiecki Ms. Lahr Ap-Biology September 17‚ 2013 Title: The Effect of Abiotic and Biotic Factors on Enzymatic Reactions Problem: Will increased pH affect the rate of reaction in an enzyme catalyzed reaction? Hypothesis: Increased pH substance will increase the rate of reaction Table: Table 1: Baseline of peroxide Time (min) Qualitative color 1:00 5 2:00 6 3:00 7 4:00 8 5:00 9 Table 2: effect of increased pH on peroxidase Increased pH by 5mL Color intensity
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encoded by EZH2‚ the EZH2 gene encodes part of the Polycomb group which make protein complexes that help to maintain genes transcriptional repressive state over successive cell generations. http://www.ncbi.nlm.nih.gov/gene/2146 Throughout this lab report template DNA that contains the gene EZH2 was provided‚ this will be amplified by a PCR and cloned into a vector. This Polycomb group proteins help maintain the cell identity during progress through chromatin
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Biofuel Enzyme Kit Katie Adamson Biochemistry Laboratory‚ BIO124L 1/29/15 Abstract The objective in this lab was to determine the effects different conditions had on the enzyme cellobiase. We examined reaction rates in the presence or absence of an enzyme‚ the effects temperature and pH changes on the enzyme and the effects enzyme concentration and substrate concentration had on the enzyme. As expected results showed us that cellobiase works optimally when conditions are favorable. We see this
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The Determination of the Concentration of Hard Water Ions by the Titration of EDTA By Hannah Denby Lab partners: Heidi Kiziah‚ Leonie Hamel University of Central Florida‚ CHM 2046L December 3rd‚ 2015 Abstract. The “hardness” of water is a common dilemma attributed by high concentrations of metals such as calcium and magnesium. This is a result of the properties of water; because it is a good solvent‚ impurities are easily dissolved. As water moves through soil and rock‚ it dissolves minute amounts
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molecular weight are solid and have low vapor pressure which have less molecules that allow us to smell it (Staudt 80). When H in the carboxyl group is replaced with an alkyl group‚ it becomes an ester group. “The reaction typically gives 60-70% of the maximum yield” (Staudt‚ 80). The reaction of an ester could also be reversible to make carboxylic acid and alcohol; this process is called hydrolysis. But when‚ “the base-promoted decomposition of esters yield an alcohol and a salt of the carboxylic acids;
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speeds up the decomposition of hydrogen peroxide The students have studied that Hydrogen peroxide is a jeopardy to metabolism if it’s not obliterated. Enzymes are proteins produced by living cells of that act as catalysts which affects the rate of biochemical reaction by speeds up the breakdown of hydrogen peroxide into water and oxygen gas. The students have formed a hypothesis toward this experiment. If the speed of decomposition of hydrogen peroxide is related to the temperature then in high temperature it will
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