pH & Enzyme Action Aim: To inspect the effects of the pH on enzymes. Apparatus: 100 cm³ Beaker 3 – 5cm³ Syringes 2 Test Tube Racks with 8 Test Tubes Stop-watch Ruler Dropping bottle of detergent Marker Pen Masking Tape 400cm³ Hydrogen Peroxide 200cm³ Liver Catalase Solution 100cm³ of following Buffer Solution – pH5 pH7 pH9 pH11 Method: The materials were collected. The test tube rack one with 4 test tubes had been labelled A to D. The 2cm³ of each buffer solution
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digestive power of pepsin is greatest at the acidity of normal gastric juice (pH 1.5–2.5). In the intestine the gastric acids are neutralized (pH 7)‚ and pepsin is no longer effective. "Pepsin (biochemistry)." Encyclopedia Britannica Online. Encyclopedia Britannica‚ n.d. Web. 10 Dec. 2012. Research Question: Does changing the pH of pepsin affect the ability to break down the protein (mass of jello). Variables: independent- Ph level dependent- The mass of the jello
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Name: _____________________ Date: _____________ Student Exploration: pH Analysis Vocabulary: acid‚ acidic‚ alkaline‚ base‚ indicator‚ neutral‚ pH Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Acids are substances that produce hydrogen ions (H+) when dissolved in water. Lemon juice is an example of an acid. A. What does lemon juice taste like? __Sour.______________________________ B. What does it feel like if lemon juice gets in your eye? ___It
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This is the 1st ranking of TopBusinessFinance.com’s 50 largest companies in the Philippines in terms of market capitalization. I tabulated the market capitalization of the Philippines’ top companies. Figures are gathered from the Philippine Stock Exchange website (www.pse.com.ph). The Philippine Long Distance Telephone Company (PLDT) ranks as the Philippines’ number 1 most valuable company. Philippines’ Largest Company 2012 The companies are incorporated in the Philippines and are publicly-listed
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In this lab‚ we were able to determine measuring the pH of liquids work. We were able to compare the liquids based on their pH level and determine which liquid was acidic or basic. Our results showed that if something came out to be seven or less‚ according to the pH scale‚ it means that an acid is a substance that donates hydrogen ions. Because of this‚ when an acid is dissolved in water‚ the balance between hydrogen ions and hydroxide ions is shifted. Now there are more hydrogen ions than hydroxide
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for the pH concentration experiment were put together by using a 10ml-graduated cylinder to obtain 4ml of each pH buffer to insert into cuvettes‚ a micropipette was then used to obtain 0.5ml of catechol and 0.5ml of the catechol oxidase. The pH buffer was made first to avoid any denaturation of the catechol oxidase. Our positive control for this experiment was pH 7 because that is the pH level of most cell membranes in the cytoplasm (Whitson‚ 2016.) Our negative controls varied for each pH buffer
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The reason why I think this could be a limitation is because each solution has an extreme acidic pH level like 1 or 2. As a result‚ I speculate the supreme acidity of the solution could negatively affect the pH measurer that could make it lose the originality to measure the right pH level for later product. Hence‚ it is crucial to have the pH measurer calibrated in a buffer solution so that the measurement can have a high accuracy overall. Thirdly‚ when measuring the
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02/20/2012 Prof. Gregory Michael/Zhang Zheng 1. Create a table that lists the benefits to the patient and to the hospital of an enterprise system for patient medical information and for patient prescriptions and related medical therapies. Enterprise system | Benefits to the patient | Benefits to the hospital | Patient medical information | * Each patient will be identified and treated individually * It can provide more effective and professional treatment to patients * It became
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Republic Act No. 9173 October 21‚ 2002 AN ACT PROVIDING FOR A MORE RESPONSIVE NURSING PROFESSION‚ REPEALING FOR THE PURPOSE REPUBLIC ACT NO. 7164‚ OTHERWISE KNOWN AS "THE PHILIPPINE NURSING ACT OF 1991" AND FOR OTHER PURPOSES Be it enacted by the Senate and the House of Representatives of the Philippines in Congress assembled: ARTICLE I Title Section 1. Title. - This Act shall be known as the "Philippine Nursing Act of 2002." ARTICLE II Declaration of Policy Section 2. Declaration
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Although the Muji shark fin soup cannot sell in Hong Kong and Taiwan in Asia‚ we still can buy it in Japan and we all know the number of sharks is decreasing sharply. Therefore‚ we suggest that Muji should substitute the real shark fin buy some other food which has the similar texture and taste‚ just like the artificial shark fin made of edible gelatin‚ in order to reduce the number of deaths of sharks because their shark fin have to make into food. Also‚ we suggest that Muji can motivate and sponsor
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