Lab Report: pH Name: _________________________________________________________ Materials Needed You will need the following materials for this lab. • • • • • • • • • • • • • Red cabbage Coffee filter or paper towel Container for water (at least 250 ml or 1 / 2 pint) Three transparent cups (about 100 ml or 3 ounces) or other similar containers Hot water (e.g.‚ from a faucet‚ heated in a microwave oven‚ etc.) Thermometer Vinegar Baking soda Safety goggles Tongs or fork Eyedropper or drinking
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reaction in which catechol‚ then catechol becomes the product called benzoquinone‚ which is a reddish-brown color‚ which make it easier to determine the quantity that has been formed. (Dickey). Moreover‚ the enzyme activity is persuaded by ph‚ plus temperature. Change in ph will have effect on hydrogen bonding that can modify the form of protein. Increase in the temperature will spread the reactions rate; nevertheless‚ if the temperature is unreasonably high the enzymes will denatures. For this experiment
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University of Texas at Tyler Lab 3C: Purification of L-Lactate Dehydrogenase By Affinity Chromatography on Cibacron-Blue Sepharose David Alexander 10-15-2014 Dr. Black Chem 4135.001 Abstract: Like the previous experiments‚ the ultimate goal of this lab was to purify the enzyme sample. However‚ this is the last lab for purification and high level techniques of purification were employed to achieve this. Dialysis was used first‚ lowering the small-molecule concentration within the sample. Finally
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In the first part of the lab‚ we prepared a salivary amylase solution and aggregated acetic acid to detect the presence of mucin. Then‚ 4 test tubes were made of the following: Tube 1 = 3 ml starch + water + 37 degrees water bath; Tube 2 = 3 ml starch + saliva in water bath; Tube
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[Name] [Teacher] [Course] [Date] Catalase Lab Report An enzyme is something that helps to speed up a chemical reaction. The enzyme changes from reaction to reaction‚ but it always has the same impact. However‚ certain variables may cause the enzyme to have a more or less significant impact on the speed of each reaction. One of these variables that changes the effectiveness of an enzyme is temperature. There is an optimal functioning temperature for each enzyme in each reaction‚ depending on
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| Gram Negative Unknown | Biology 3444-006 | | Lena Wallace | 11/7/2011 | | Abstract: The purpose of this lab was to identify an unknown bacteria culture using differential tests. The identification of the unknown culture was accomplished by identifying the bacteria based on its specific metabolic characteristics and morphology. It is suggested that culture 11 is a sample of Enterobacter aerogenes. Introduction: This experiment was centered on metabolic and biochemical testing
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Preparation and storage of buffers and general solutions used: All Solutions were made with Ultra-pure water (MilliQ water). The 4% formaldehyde solution was freshly made in PBS. (phosphate buffer saline). A 0.1 % solution of Triton X-100 was made prior to use in PBS. The t-RNA solution is made in water at 10 mg/ml and stored in aliquots at −20 °C. The 20× SCC: 175.3 g of NaCl and 88.2 g of sodium citrate are dissolved in 800 ml of water‚ pH is adjusted to 7 with 10 N NaOH‚ and the
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Photosynthesis and Respiration Objectives: In this activity we will review the process of photosynthesis and cellular respiration‚ and become familiar with the use of a pH indicator for investigating these processes. Following this activity your group will generate a new research question about photosynthesis or respiration‚ and utilize the pH indicator system for the experiment that your group will design‚ implement and interpret. Introduction: Photosynthesis is the process by which plants and some other
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Lawrence Joy Pengda Jin Jing Shang Hanish Mandru 1. What are the various types of malware? How do worms differ from viruses? Do Trojan horses carry viruses or worms? a. The various types of malware are viruses‚ worms‚ Trojan horses‚ polymorphic threats‚ virus and worm hoaxes‚ back door or trap door‚ denialofservice and distributed denialofservice‚ and mail bomb. b. A virus must be executed such as opening an infected email attachment while a worm can be initiated with or without the user downloading or executing the
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1. Title: The Process of Determining the Unknown Bacteria #9 Rachel Judecki July 5‚ 2011 2. Introduction: Each student was given unknown bacteria and was instructed to perform a variety of experimental tests that would help to identify their bacteria. During the process of identification‚ the unknown bacteria was added to many different testing medias using aseptic technique. They are as follows: lactose fermentation on eosin methylene blue (EMB)‚ TSI (Triple Sugar Iron agar)‚ Phenol
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