speeds the breakdown of hydrogen peroxide‚ a toxic chemical produced by cells in the body‚ into water and oxygen (Cain and others‚ 2010). The oxygen can be observed as bubbles coming from the reaction site. Catalase is found in many living tissues of organisms‚ including chicken liver. The purpose of this experiment is to determine what changes in pH‚ temperature‚ and enzyme concentration have on the rate catalase works to break down hydrogen peroxide. If the pH‚ temperature‚ or enzyme concentration changes‚ then the reactio
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Abstract The purpose of this lab was to test if ethanol affects the reaction involving hydrogen peroxide and catalase. Tests were performed by putting chicken liver‚ ethanol solution (diluted ethanol solution for other trials) and hydrogen peroxide in a test tube with a side arm‚ and having a rubber tube lead the oxygen gas into a gas collection tube. Results from the tests showed a negative correlation‚ this means that the more diluted the solution of 95% ethanol was‚ the less oxygen gas collected
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Equipment: Beaker‚ Boiling tubes‚ Water bath‚ Pen knife‚ Glass rod‚ Parafilm. Materials: Fresh liver‚ Potato cubes‚ Manganese dioxide‚ Hydrogen peroxide‚ Wood splints Procedures: 1. Six fresh empty boiling tubes 1‚ 2‚ 3‚ 4‚ 5‚ 6 were labeled. 2. The liver provided was cut into three pieces of roughly 0.8cm X 0.8cm X 0.5cm. 3. One piece of liver was placed into tube 1. 4. The second piece of liver was placed into the tube 2. Tube 2 was placed in the boiling water for about five minutes
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synthetic drug that is used for treatment of breast cancer. Despite the beneficial effects of TMX‚ the use of this drug has several side-effects in these patients. Non-alcoholic fatty liver disease (NAFLD) is a well-known adverse effect of TMX. Silybum marianum is the most researched plant in the treatment of liver disease. Objectives: In this study the effect of Silybum marianum extract (SME) on histological and biochemical parameters in the TMX treated rats was investigated. Materials and Methods:
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effects of the drugs on their body‚ but that does not stop them from continuing to put their lives in danger. Substance abuse can lead to many catastrophic consequences on the body including severe liver damage‚ cardiovascular effects‚ and neurological effects. Due to the addition of drugs in the body‚ the liver works more vigorously in order to maintain homeostasis and this additional strain can lead to many
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they tested this by seeing how H2O2 and the catalysts from the banana and liver react to make H2O+O2. Depending on different conditions; like decomposition of H2O2 (surface area)‚ temperature on function‚ reusing the catalase‚ reaction rate of iced liver returned to room temperature‚ and effects of pH on enzyme activity‚ to see how much O2 was released by each reaction. For experiment two they tested effect of temperature on liver‚ iced had a slow increase of O2 loss‚ after a minute 18.8 ml of O2 escaped
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this lab was to measure the amount of protein from a piece of beef liver . This was done by taking the liver‚ blending it and then using a centrifuge to separate the supernatant from the pellet. Once that was completed‚ ammonium sulfate was added to the supernatant‚ chilled and then spun for a second time. Next‚ 20 mL of water is added to the pellet‚ stirred and the volume was recorded. The teacher calculated the total mass of liver to be 10.098g. Lastly a spectronic 20 at a wavelength of 540 nm
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damage. These are the ethics of stem cell research. Stem Cells overall can both save and destroy people. In the article‚ “Scientists Fabricate Rudimentary Human Livers” by Gina Kolata speaks about scientists who have created a human liver from stem cells. This is good because it is a monumental achievement in science. This human liver is an example that
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depressant that slowly begins to have an effect on the functions of the body. The alcohol quickly enters the bloodstream and then is carried throughout the body. The effect of excessive use of alcohol affects every system in the body‚ especially the brain‚ liver‚ and heart. These effects it has on the body is significant. The alteration of behavior is the first effect of alcohol affecting the brain. The brain is the central control system that controls muscle movement and memory process. The effect of alcohol
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glowing peroxide splinter 1 Fresh liver Moderate amount of effervescence is produced . Pop sound is heard . The glowing splinter is ignited with violent flame and extinguished within 8 second as the glowing splinter is inserted . . 2 Boiled liver (cooled) No effervescence is produced . No changes occur No sound is heard . The glowing splinter is extinguished as the glowing splinter is inserted . 3 Pulped liver High density of effervescence is produced vigorously
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