1 Biology 2070H - Lab #1 MICROSCOPY AND CHARACTERIZATION OF CELLS Introduction: Cells can be very difficult entities to study. They are usually very small and transparent‚ yet extremely complex. Fortunately‚ there are many tools available to the cell biologist that aid in their study. The light microscope is to this day perhaps the single most important instrument used in Cell Biology. It is used under bright field conditions to study the organization of cells in fixed and stained sections
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familiarity with the proper techniques for using a microscope. The experiment focused on both the basic components of a microscope (i.e. how to adjust the knobs and levers for the desired result) as well as how do decide the proper objective to use for observing a specimen. The second goal major goal of this experiment was to practice observing live specimens (yogurt and blood). Procedures: Exercise 1: Observation of prepared slides using the microscope. The observation of the 8 prepared slides was
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Study guide for Microbiology Chapter 2 Name________________ 1. List and describe the sequence steps routinely used to identify bacteria. These are referred to as the “five I’s” in your text. 2. Define / describe each of the following as they apply to microbiology: a. Culture f. pure culture b. Inoculum g. contaminated culture c. Inoculation h. mixed culture d. Colony 3. Microbiologists employee a number of approached to acquiring a pure culture
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every day in order to maintain the concentration. The corroded specimen were then taken out after 100 hours for performing the test. Few corroded specimen were sectioned from the corroded area with care and then they were observed under the optical microscope to study the pit density and size. 2.3 STUDY OF MECHANICAL PROPERTES OF CORRODED SPECIMEN: After the corrosion of the specimens was completed tensile test was performed on the specimens in order to study the effect of corrosion on the mechanical
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Cited: Leboffe‚ Michael J.‚ and Burton E. Pierce. "Microscopy and Staining." Brief Microbiology Laboratory Theory & Application. 2nd ed. Englewood‚ CO: Morton‚ 2012. 159-178. Print. Leboffe‚ M.‚ & Pierce‚ B. (2012). Microscopy and Staining. In Brief Microbiology Laboratory Theory & Application (2nd ed.). Englewood‚ CO: Morton Publishing.
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seed samples (the growth and development of organisms); the electron microscope (allowing detailed examination of objects); the tablet-style computer (the dissemination and democratisation of knowledge); and the moon rock (exploration of space). DNA Spiral Helix The deoxyribonucleic acid (DNA) helix is the only object in the Cabinet which is a representation. Whilst DNA exists in every cell it would need the Electron Microscope to render DNA visible. Two strands are shown twisted into a helix with
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SAMPLE DESCRIPTIVE LAB REPORT Examination of Protozoan Cultures to Determine Cellular Structure and Motion Pattern Abstract Protozoans are unicellular eukaryotes with either plant- or animal-like characteristics. Through careful observation‚ we analyzed various protozoan cultures in order to identify characteristics associated with cell structure and movement of these one-celled organisms. We found that Protists exhibit certain characteristics that allow them to be categorized into different groups
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ANALYTICAL BIOCHEMISTRY Analytical Biochemistry 363 (2007) 1–11 www.elsevier.com/locate/yabio Review Ultrasensitive biochemical sensors based on microcantilevers of atomic force microscope Chengyin Wang b a‚b ‚ Deyan Wang a‚ Yindao Mao a‚ Xiaoya Hu a‚b‚* a College of Chemistry and Chemical Engineering‚ Yangzhou University‚ Yangzhou 225002‚ China Key Laboratory of Environmental Engineering and Monitoring of Jiangsu Province‚ Yangzhou‚ China Available online 4 January 2007
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SCIENCE PROCESS SKILLS Basic Science Process Skills: 1. Observing - using your senses to gather information about an object or event. It is description of what was actually perceived. This information is considered qualitative data. 2. Measuring - using standard measures or estimations to describe specific dimensions of an object or event. This information is considered quantitative data. 3. Inferring - formulating assumptions or possible explanations based upon observations. 4
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that form stromatolites There have been many technological advances that have lead to a greater understanding to the world that we live in‚ especially over the past 50-75 years. Developments in technology such as the light microscope and the transmission electron microscope particularly have made research in the field of bacteria and in this case Cyanobacteria much easier‚ removing barriers and creating a situation where there are barley any limits. Cyanobacteria are among the easiest microfossils
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