Bacteria are the most numerous type of microorganism found in the rhizosphere of the soil. They produce secondary metabolites which are capable of producing antibiotic which eventually inhibit or kill bacteria. The rhizosphere region of the soil is a highly favorable habitat for the proliferation‚ activity and metabolism of numerous microorganisms. The magnitude of this area depends on the plant and the size of the roots that the plant possesses. Bacteria are among the microorganisms living in the
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Bacterial Contamination April 15‚ 2013 Bacteria Contamination The definition of bacterial contamination is food contamination refers to foods that are spoiled or tainted because they either contain microorganisms‚ such as bacteria or parasites‚ or toxic substances that make them unfit for consumption This is very serious and people should take more precaution‚ food contamination is a serious because it results in foodborne diseases that each year affect an estimated seventy-six million
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Blood Pressure and Pulse Determination National University Bio 202 Human Anatomy & Physiology 2 Lab Report Activity 33A Dr. Alpa Gautam March 6‚ 2012 Abstract The purpose of the paper is to inform and conduct a laboratory report on human blood pressure and pulse determination. Systolic (contraction) and diastolic (relaxation) pressures refer to the ventricular contraction and relaxation. With knowing the two pressures‚ one can distinguish if he/she is at a normal
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hypothesis for the Blood Spatter Lab is that if blood is dropped from a pipette from gradually increasing heights‚ the diameter of the blood drops will increase at a constant rate. The hypothesis was proved correct because in the experiment‚ the higher the height the blood was dropped from‚ the larger the diameter of the blood drop. The data collected in the experiment represents the height the blood was dropped from over the diameter of the blood drop. The data shows that the higher the blood is dropped
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Microbiology 197 Prepared Bacteria Gram Stains (F12) Materials required: * Microscope; clean and properly set up * Immersion oil * Lens paper * Lens cleaning fluid * Microscope drawing forms * Specimens: 1. Bacillus subtilis 2. Staphylococcus aureus. 3. Escherichia coli Procedure: 1. Observe each of slides listed in “Specimens” above. 2. Make your observations using oil immersion (1000X). 3. Using a drawing form draw the organisms
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Pulse and Blood Pressure Lab (after lesson) Objectives: 1. To allow students to formulate and test hypotheses. 2. To allow students to practice taking pulse and blood pressure. Teacher notes: 1. Briefly review of how to take a pulse and a blood pressure (if necessary) 2. Instruct students to pair off 3. Students will fill out the lab worksheet which will help guide them in the lab. Answers to the questions: Using what you know about pulse and blood pressure‚ form a hypothesis about what
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Unit 10: Blood/Immunology Case Study Lab What were your three diagnoses? 1. Case 1: normal blood smear 2. Case 2: acute lymphocytic anemia 3. Case 3: mononucleosis Journal Questions for lab 1. In what ways do normal red and white blood cells differ? Red blood cells are easier to see under high levels of a microscope and white blood cells are better seen under low levels. Also white blood cells are used to fight off infections as for red blood cells carry oxygen
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Hydrogen Producing Bacteria was incubated in a complete - mix digester with work volume 1.7 L‚ seeded with sludge obtained from the local sewage treatment plant. Each liter of feed medium was composed of the following : 7 g of glucose‚ 1 g NaHCO3 ‚ 500 mg of NH4Cl ‚ 250 mg KH2PO4 ‚ 250 mg K2HPO4 ‚ 320 mg of MgSO4 • 7H2O ‚ 50 mg of FeCl 3 ‚ NiSO4 32 mg ‚ 50 mg CaCl2‚ Na2BO7 7.2 mg H2O ‚ 14.4 mg (NH4) 6MO7O24 H2O ‚ 23 mg of ZnCl2 ‚ 21 mg CoCl2 H2O ‚ 10 mg CuCl2•2H2O and 30 mg of MnCl2•4H2O . The reaction
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This experiment involves measuring and identifying the change in blood pressure. In this experiment‚ measurements of systolic arterial pressure‚ diastole arteriole pressure‚ and pulse rate were recorded and observed. The effects of changes in the body were observed and measured during body positioning‚ exercise‚ and cognitive stress. The purpose of this lab experiment was to test multiple variables that can have an effect on blood pressure and pulse. As stated‚ the following variables that were tested
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pulse rate and blood pressure has many wondering. Because of this curiosity‚ an experiment was performed to get some answers. The purpose of the experiment is to see how different variables affect pulse rate and blood pressure. Before starting the experiment‚ self educating on background information was a necessity in order to obtain a full understanding of what exactly was going to be performed. What is blood pressure and how does it work? “As the heart beats‚ the heart pushes blood through a network
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