container of parafilm 1 set of 20 spec tubes 1 regular test tube rack 1 small test tube rack 1 box Kimwipes Eye Droppers 1 thermometer 2-10ml Graduated Cylinders 1 Spectrophotometer 37 °C waterbath with test tube racks Solutions: 1 flasks of pH 7 buffered ONPG 1 flask of Lactose 8% 1
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An ECG revealed signs of ventricular arrhythmias. The values following values were taken from the results of an arterial blood gas (ABG) and urinalysis (UA). Aterial Blood Gas (ABG) High or Low pH: 7.0 Low Pco2: 62 High bicarbonate: 29 mEq/L High Urinalysis (UA) pH: 4.0 Low Short Answer Questions Define the following terms contained in this case: Bilateral - Pertains to the right and left sides of a structure; affecting both sides. Hypoventilation - Breathing
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is colorless when it is an acid and pink when it is a base. Ammonium is familiar base‚ used for cleaning oils and grease from any types of surfaces. Ammonium is a fairly strong base with a pH of 11 and will dissociate completely into an aqueous solution (water). Water is universal and has a neutral base with a pH of 7. A Danish chemist named Johannes Bronsted and an English chemist by the name of Thomas Lowry suggested and then defined two theories. The bronsted-lowry theory defines an acid as a
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To scrutinize the color potency depth of the azo dye Remazol Black-B decolorizing activity by an effectual bacterial isolates‚ liquid medium was used. Based on the relative aptitude of the decolorization of diverse isolates‚ three most excellent performing bacterial isolates (1‚ 2 & 3) with more than 90% of decolorizing activity were preferred for more experiments (Data not shown). 3.1 Biodecolorization of Remazol Black-B by selected bacterial isolates Microbial decolorization of Remazol Black-B
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and the production of energy are the evidences of a chemical reaction‚ thus‚ of a chemical change. Materials Crucible tongs Evaporating dish Glass rod Test tubes Test tube rack Thermometer Analytical balance Magnesium ribbon pH paper 1M copper (II) sulfate Iron metal 6M hydrochloric acid Procedure Magnesium and oxygen test A small strip of magnesium metal is held on one end with a pair of crucible tongs‚ while the other end is ignited with the flame of Bunsen
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Lab Ex#8: "Enzymes: Catalysts of Life" INTRODUCTION Enzymes are protein organelles where chemical reactions take place to generate energy within our cells. Without the energy produced from the cell enzyme activity‚ we would not possess the catalyst activity necessary for energy to produce movement. Each enzyme performs a specific function within our bodies. Those functions performed can be significantly altered with the introduction of variables outside their environment. Variables‚ such as temperature
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Role in Fluid Balance Introduction The renal system performs a vital role in homeostasis. The kidneys’ ability to retain valuable constituents and expel metabolic wastes from the body enables this system to regulate the volume‚ osmolarity‚ and pH of body’s internal fluid environment (Sherwood‚ 2007‚ p. 511). The functional unit of the kidney‚ referred to as the nephron‚ is composed of both tubular components—Bowman’s capsule proximal tubule‚ loop of Henle‚ the distal tubule‚ and the collecting
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Page 1 of 10 5.111 Principles of Chemical Science EXAM # 3 ============================================================================ Write legibly your name and your TA’s name below. Do not open the exam until the start of the exam is announced. The exam is closed notes and closed book. You have 50 minutes (1 academic hour) to complete it. ● Read each part of each problem carefully. ● Write your answers legibly in the corresponding spaces of the attached sheets. ● For problems requiring
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5. Explain in detail‚ the range of natural variation of and factors contributing to the following major parameters in freshwater: a. Dissolved Oxygen b. Biochemical Oxygen Demand c. Conductivity d. Nutrients e. pH f. Alkalinity g. Hardness 6. Explain how each of the above major parameters affects organisms and the structure and function of freshwater ecosystems. Summary Chemical composition of freshwaters • Define where freshwaters
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why did you make them? After I selected my fish‚ I noticed that the tank began to grow algae. The next time I selected fish and invertebrates‚ I chose to add cleaner shrimp and snails to my tank. The pH then started to go up‚ then down‚ and then up again so I added pH buffer solution so the pH could stabilize at 8.1. After that‚ I decided to add water to keep the specific gravity from getting too high and maintaining stable. 3. What problems‚ if any‚ did you have with any of the fish
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