Citrate Test: Some bacteria can use citrate as a source of carbon. To test if the unknown bacteria uses citrate as a source of carbon‚ Simmon’s citrate agar was used as the medium on which the bacteria was grown. The Simmon’s citrate agar consists of sodium citrate as the source of carbon‚ ammonium dihydrogen phosphate as the source of nitrogen along with pH indicator such as bromothymol blue. Procedure: The Citratase activity was detected by inoculating the unknown bacteria on the slant surface
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feel sick. You’re coughing‚ sneezing‚ you have a fever‚ your body aches and you just want to stay in bed and sleep. Those are signs that something is wrong with your health. You feel abnormal. Your collections of warning signs are called symptoms. When taken to a doctor‚ he/she takes your symptoms and can then tell you what underlying condition‚ or syndrome you have. This feeling of abnormality happens also in mental illness. Mental illness can appear in a person in many different ways. Normally
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A flame test is conducted when an element is burned and the flame produces a color different the starting flame color. When the coffee stirrer was put into the flame‚ the element’s atoms (from the solution of the stirrer) left the original level of energy. When the atoms fell back to ground level‚ they released photons in the form of colored flame. Using the flame test‚ unknown compounds can be identified when they are burned since each element has a specific color. (Douma‚ 2008). The color
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ions. Materials: Safety glasses 10 test tubes Test tube rack Paper Pencil 50 mL beaker Bunsen burner Nichrome wire Barium Nitrate Copper Nitrate Strontium Nitrate Lithium Nitrate Potassium Nitrate Sodium Chloride Calcium Nitrate Unknown solutions A‚B‚ & C Hydrochloric Acid Wash bottle (with distilled water) Procedure: 1. Label the test tubes with the names of the solutions and unknowns. 2. Place about 5 mL of each solution into each test tube‚ and 10 mL of Hydrochloric Acid into
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Testable Question: What will happen to different halide salts found in the body if various compounds are added to the halide? How will the halides react? Introduction: For this lab we tested 6 halide salts found in the body‚ and their reactivity when a compound is added. We tested the halides NaF‚ NaCl‚ KBr‚ KI‚ and two unknown halides. To find the reaction of the halide‚ we are adding drops of Ca(NO3)2‚ AgNO3‚ AgNO3 + Na2S2O3‚ and NaOCI + Starch to the halides. Each halide will be separated from
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This lab tests the process of germination with various pH levels. The pH level of something is its measure of acidity or how basic it is‚ solutions with a pH of less than 7 are said to be acidic‚ and solutions with a pH greater than 7 are said to be basic. The tap water that was used to water our beans had a pH of 6. In this lab‚ we studied the process of germination (the process by which a plant grows from a seed). Certain environmental factors can cause or stop a seed’s germination‚ and these factors
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Lab 2 Tensile Test Abstract The aim behind this experiment was to put Mild steel‚ copper and aluminium through a tensile test‚ with Mild steel being tabulated and graphed to show its properties and how they could be used in the real world. Introduction/Theory Tensile testing is one of the most simple and widely used materiel tests available. It is used to characterize the mechanical properties of the material and has direct implications on the design and construction of the end product. This test
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Physical Assessment Date: Time: General Appearance: The patient is female‚ lying in bed‚ with #5 0.9 NaCl @ 80 gtts per minute @ 900 cc hooked @ left metacarpal vein‚ patent and infusing well. The patient is wearing white shirt and blue pajama. The patient is slightly well groomed even though she can’t do her daily activities and hygienic activities such as combing her hair‚ brushing her teeth‚ changing her clothes‚ trimming her nails and even bathing. The patient has impaired verbal communication
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Introduction: The purpose of this lab is to use staining techniques and biochemical testing to identify an unknown bacteria using Bergey’s manual. Bergey’s manual of Systematic Bacteriology is a dichotomous key primarily used to identify a bacterial species. Biochemical tests are used to differentiate different species of bacteria. These tests are effective in determining the characteristics of the microbe being tested. Such characteristics include citrate utilization‚ gelatin hydrolysis‚ nitrate
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Repeat step 4 for each of the remaining salts. 3. Repeat step 4 for each of the unknown metals and predict the identity of the unknown metals. Repeat any of the known metals to help with this prediction. **Wash hands thoroughly before leaving the lab. ** Some of the salts used are poisonous or irritating to the skin. Keep your hands away from your mouth until after you have washed them and have let the
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