Goggles were mandatory for this experiment. For this experiment chicken liver was used as the enzyme source. An enzyme solution was made by crushing a small piece of chicken liver and then adding 10 mL of distilled water. The pH of the enzyme solution was taken using pH paper. In 3 separate test tubes 10 drops of the enzyme solution was deposited. Test tube #1only had the enzyme solution and hydrogen peroxide. In test tube #2 one drop of 1.0M sodium hydroxide(NaOH) was added. In test tube
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Mechanisms of Acetaminophen-lnduced Liver Necrosis By Jack A. Hinson‚ Dean W. Roberts‚ and Laura P. James Acetaminophen (paracetamol‚ N-acetyl-p-aminophenol; APAP) is widely used as analgesic and antipyretic drug. At therapeutic doses‚ acetaminophen is safe to be used. Acetaminophen other than aspirin and ibuprofen has only weak anti-inflammatory properties. At higher doses‚ acetaminophen produces a centrilobular hepatic necrosis that can be fatal. Acetaminophen-lnduced Hepatotoxicity Observation/
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peroxisomes have the ability to remove hydrogen atoms from various fatty acids and hydrocarbons using oxygen in oxidative reactions‚ in an attempt to break down these reactants. However‚ by removing this hydrogen; toxic or volatile oxygen molecules‚ such as hydrogen peroxide (H₂O₂)‚ are produced. Alberts et al. (2002) continues to explain that peroxisomes provide a protected environment in order to consume these toxic products with the use of enzymes like catalase and urate oxidas. This process of breaking
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Name Chapter 2--Cell Physiology Description Instructions Modify Add Question Here Question 1 Multiple Choice 0 points Modify Remove Question Which component below is not always found in a typical human cell? Answer cytosol DNA flagellum plasma membrane water Add Question Here Question 2 Multiple Choice 0 points Modify Remove Question A typical human cell is about ____ micrometers in diameter. Answer 1 to 2 10 to 20 80 to 100 150 to 200 200 to 300 Add Question
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point)Positive e. Unknown 2 (1 point)Positive f. Unknown 3 (1 point)Positive g. Unknown 4 (1 point)Positive 6. Report the results from the catalase test. (3 points) a. Liver Is catalase present? Yes/No (1 point) Yes b. Roast beef Is catalase present? Yes/No (1 point) Yes c. Student supplied meat (provide name of meat) Chicken Is catalase present? Yes/No (1 point): Yes 7. List the
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will use potatoes’ juice to extract “Catalase” the enzyme that breaks down peroxide. When peroxide breaks down‚ oxygen is released. In our experiment we will measure the time a tiny piece of paper absorbed with potatoes juice will get to the bottom of the flask full of water and peroxide as it release oxygen. There is going to be a variation of the concentration of peroxide in the solution‚ as a total result we will observe the performance of the enzyme “Catalase”. Question: How will the concentration
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BIOLOGY IA A Factor That Will Affect Enzyme Activity The Question Effects on Enzyme activity: investigating the effects of mixing Hydrogen Peroxide with Catalase extracted from potatoes at different temperatures‚ and then comparing the results with the same method‚ except to replace the Potato juice with MnO2 Hypothesis Since enzymes are a type of protein‚ they will be destroyed at high temperatures and activity rates will go down at low temperatures. Also‚ if done at low temperature
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the enzymes‚ when it happens‚ and why it denatures the way it does. b. Hypothesis Materials and Methods a. Materials 50ml beaker of fresh potato catalase Reaction chamber Ring stand and clamp 10ml graduated cylinder 100ml graduated cylinder 3% hydrogen peroxide Pan (water bath) Pipette Hot plate Ice Thermometer Boiled Catalase Buffers of varying pH: 4‚7‚10 Distilled water Balance NaCl (salt) b. Methods Refer to handout c. Statistical Methods Results a. Dependent
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presence of ethanol on the rate equation. It is known that ethanol effects hydrogen peroxide and therefore it has an effect on the rate equation. This aim will find out the effect of ethanol by carrying out the iodine clock reaction with and without ethanol present and the results will be compared to draw a conclusion. A2 AIMS: 4. Investigate the order of reaction with respect to hydrogen peroxide‚ iodide and acid. The goal of this aim is to find out what order of reaction
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Phytochemical characterization & antioxidant activity of mangrove plant Sonneratia caseolaris Submitted by: Kumari Priyanka Regd no.-0901106090 Sem-7th‚ Biotechnology
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