purpose of this experiment is to learn how to use a compound microscope and an oil immersion lens while observing prepared bacterial slides. Additionally‚ it will be necessary to prepare slides so as to observe bacterial cultures from yogurt as well as to observe the composition of blood (i.e. red blood cells‚ white blood cells‚ and platelets). Procedure: Exercise 1: Viewing Prepared Slides To begin this lab experiment I first constructed my incubator using a small Styrofoam cooler and a standard
Premium Bacteria Escherichia coli Microbiology
active Streptobacillus bacteria in yogurt. Purpose: The purpose of this lab was to display knowledge of the use of a compound microscope with and without an oil immersion lens while observing and identifying various bacterial shapes and arrangements‚ including a self prepared yogurt culture. Procedure: Exercise 1: Viewing Prepared Slides 1. After setting up and cleaning all lenses‚ place the prepared e slide properly on the stage. 2. View the slide under the10x objective by moving
Premium Bacteria
correctly use a microscope and the oil immersion lens to be able to see the prepared slides. Also to learn how to prepare my own yogurt and blood slides. Procedure: First‚ set up the microscope. Clean the ocular lenses and objectives with lens paper. Then pace the prepared e slide on the stage and make adjustments. Turn the rotating nosepiece until the 10x objective is above the ring of light coming through the slide. Move the slide using the X and Y stage knobs until the specimen is within the view.
Premium Bacteria Cell nucleus Blood
microscope and oil immersion lens while observing prepared bacterial slides and also to prepare slides for observable bacteria culture from yogart. Procedure: Exercise 1: Using the Microscope - Viewing Prepared Slides I started out by reading and reviewed the science lab safety reinforcement Agreement and the instruction to oil immersion lens. After setting up my lab station I view the six prepared slides with 10x and 40x objctives lens. In each slide the differences was magnification and the 40x
Premium Bacteria Optics Observation
holds two or more objectives lenses and can be rotated easily to change power D. Objective lenses- 4x‚ 10x‚ 40x‚ and 100x powers E. Stage- The flat plate where the slides are placed for observation F. Diaphragm- Generally a five hold disc placed under the stage. Used to vary the intensity and size of the cone of light to see the slide. G. Illuminator- A light source‚ used to reflect light from an external light source up through the bottom of the stage. H. Coarse Focus Knob- Rough focus knob on the
Premium Bacteria Telescope Lens
observing live specimens (yogurt and blood). Procedures: Exercise 1: Observation of prepared slides using the microscope. The observation of the 8 prepared slides was performed by making adjustments to the microscope (focus‚ condenser‚ light) in order to establish a clear image
Premium Bacteria Chemistry Microbiology
E. Stage - holds the object to be viewed F. Diaphragm – controls the amount of light reaching the slide G. Light source – a mirror‚ lamp‚ or bulb for illuminating slide work. H. Course adjustment – used for the initial focusing of field I. Fine adjustment – used for the final focusing of field J. Arm – connects base to the viewing tube K. Stage knobs or clips – secures and adjusts the slides position on the stage L. Base – connects the arm and provides stability B. Define the following
Premium Bacteria
needed‚ and data tables that should be addressed in a formal lab report. The intent is to facilitate students’ writing of lab reports by providing this information in an editable file which can be sent to an instructor. Exercise 1: Viewing Prepared Slides Questions A. Identify the following parts of the microscope and describe the function of each. A=Ocular Lens-
Premium Bacteria
with lens paper and nine different slides were chosen upon inspection‚ two of which were fresh. Each slide was carefully observed at each magnification (4x‚ 10x‚ 40x). Observations were reported in table and drawings of my findings. Table 1 Specimens | “e” slide | Penicillium with conidia | Bacteria‚ bacillus form | yeast | Bacteria‚ coccus form | Bacteria‚ spirillium form | Prepared yogurt slide | Fresh blood smear | Fresh yogurt slide – 24 hours old | Observations
Premium Bacteria
Lens: Provides different focal lengths E- Stage: Holds the specimen or slide F- Diaphragm: Controls the volume of light reaching the specimen or slide G- Light Source: illuminates slide work H- Course Adjustment: For initial focusing of the viewing field I- Fine Adjustment: For final focusing of the viewing field J- Arm: Connects the base to the main tube; provides upright stability K- Stage Knobs or Clips: Adjust the slides position on the stage L- Base: Provides lateral stability for viewing
Premium Bacteria