Title: Observing Bacteria and Blood- Lab #1 Purpose: Being able to learn how to 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
Introduction The primary goal of this lab was to notice the bacteria growth in each tube/plates and to be able to properly inoculated the media to get a good result. Materials • 4 Nutrient Broths • 4 Agar Slants • 4 Agar Deeps • 4 Petri Dish • 1 loop and needle • Bacillus subtilis, Escherichia coli, Staphylococcus aureus Samples Procedures 1. Label all of the tubes and petri dishes with the name of the bacteria and my lab partner and I initial, but leave one of each media as a control and label
Section: Camile Manradge & Michele McNeill, Section 704 Title and Number: Observing Bacteria and Blood - Lab # 1 Purpose: The purpose of this experiment is to gain knowledge of the functions and operations of the compound light microscope and an immersion oil lens by observing prepared slides of various bacteria and blood slides. We are also learning to indentify and observe the various shapes and characteristics of bacteria, as well as, yogurt cultures (fresh and prepared) and blood samples under
Lab Report #1: Observing Bacteria Microbiology Abstract: This lab exercise familiarized the student with the use of a microscope by observing and identifying various different slides under the microscope. The student practiced observing the given slides under the 10x, 40x, and 100x (oil immersion) objective lenses, which allowed for the identification of the different organism’s shapes and sizes. Purpose: The aim of this exercise is to equip the student with the knowledge
Observing Bacteria and Blood Cynthia Alonzo, M.S. Version 42-0249-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s questions, diagrams if 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
Purpose: To understand the difference between Gram positive and Gram negative bacteria. We also used this lab to examine our mixed culture, which had been Gram stained, under the microscope. Theory and background The bacterial cell wall is the outer layer of the cell that aids in structural support and protection from the outside environment. Bacteria can be identified by the structure of their cell wall and classified into two groups known to have different cell wall types. Two of these types
techniques. The importance of identifying microorganisms is essential to the survival of humans, expansion of modern day medicine and improvement of quality of life. In 1884, Hans Christian Gram designed a differential staining technique to identify bacteria that would change the future of microbiology. He give rise to a staining process, known as the Gram stain to differentiate microorganisms into two groups between positive and negative gram staining microorganisms. The Gram stain is essential in a
Laboratory Report: Isolating & Identifying Bacteria Introduction: Through the conduction of numerous experiments, the identity of two bacterial isolates was determined. The tested specimen was an unknown sample of a mixed culture of two different species of bacteria. The first step that was taken was obtaining a pure culture of each species of bacteria by isolating one species from the other. Once isolation was complete, the isolated cultures were tested using procedures that had been performed during
in a symbiotic relationship. By observing these things, we are hoping to find out what we should expect to see in yogurt bacteria. In order to predict this, we must first know the differences between prokaryotic and eukaryotic cells. Prokaryotic cells are organisms that do not have a cell nucleus, or any other membrane-bound
Introduction Bacteria can be differentiated with specific metabolic activities. There are a variety of reagents and methods that can be used to distinguish species. The purpose of this experiment was to determine the characteristics of four different bacteria through four unique tests. The bacteria tested include: Escherichia coli (Ec), Pseudomonas aeruginosa (Pa), Bacillus subtilis (Bs) and Proteus vulgaris (Pv). Four types of tests were performed to understand the metabolic activities of the four