Harley−Prescott: Laboratory Exercises in Microbiology‚ Fifth Edition Front Matter Preface © The McGraw−Hill Companies‚ 2002 PREFACE Take interest‚ I implore you‚ in those sacred dwellings which one designates by the expressive term: laboratories. Demand that they be multiplied‚ that they be adorned. These are the temples of the future—temples of well-being and of happiness. There it is that humanity grows greater‚ stronger‚ better. Louis Pasteur (French chemist‚ founder of microbiology
Premium Microscope Microbiology Microorganism
Purpose ● What is the purpose of this exercise? The purpose of this exercise is to become familiar with the terms and usage of a microscope. ●Are there any safety concerns associated with this exercise? If so‚ list what they are and what precautions should be taken. Care must be taken while handling the microscope so as not to accidentally drop anything and harm oneself. Questions A. The following statements are true or false. If true‚ write a “T” on the answer line. If false‚ write
Premium Telescope Lens Aperture
Practical 1- An experiment to observe the features of an Onion Cells Method: Gather all equipment that will be used for the experiment and check that they are clean and undamaged. Using forceps‚ peel the membrane from the underside of a small piece of onion. Place the membrane flat on a clean‚ glass slide and add one drop of iodine solution. Use a pin to carefully lower the cover slip over the slide‚ ensure there are no air bubbles before the use of the slide. Set the microscope to its lowest
Premium Lens Optics Microscope
Microscopy and the Metric System Margaret E. Vorndam‚ M.S. Version 42-0090-00-01 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
Premium Lens Microscope Telescope
Lori Stenbeck Bio K121 June 7‚ 2012 The Microscope Introduction: The purpose of a microscope is to see either enlarge images of small objects and or make seen what is invisible to the naked eye. We have two types of microscopes available in the lab. The dissecting microscope is designed to study objects in three dimensions at low magnification. The compound microscope is used for examining small or thinly sliced sections of objects under magnification that is higher than the dissecting microscope
Premium Microscope Lens Optics
The Microscope Lab Brandy Talley PRCC Biology Lab Online June 13‚ 2013 Purpose: The purpose of this lab is to learn about different types of microscopes that we use today‚ learn the parts of the microscope‚ and how to properly use a microscope by exploring various slides. Materials: *Microscope *Letter “e” slide *Onion root slide *Bacterial capsule slide *Cheek smear slide Lab Notes: 1.What is the difference between a compound
Premium Lens Microscope Optics
1.What type of microscope would be used in the laboratory to observe very small objects or organisms on a slide? Please give reasoning behind the answer. Which microscope would be useful when studying the internal structure of a minute specimen? (2 points) 2.List two jobs where microscopes are used. Describe in what capacity they are used. (2 points) 3.Why is a special paper used to clean the lenses of a microscope? (1 point) 4.State the name of each of the tagged parts on the microscope shown
Premium Lens Telescope Microscope
Microbiology Kit (MBK) – Lab Report Observing Bacteria and Blood Questions: List the following parts of the microscope and describe the function of each A. Ocular Lens- the lens on the top of the microscope that look into with 10x or 15x power. B. Body Tube- Connects eye piece to the objective lens C. Revolving Nosepiece- 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
Premium Bacteria Telescope Lens
1. Arm - Supports the body tube and is used for carrying the microscope. 2. Diaphragm - Controls the amount of light passing through the opening of the stage and into the microscope. 3. Stage - Supports the slide being used. You place the slide on it. 4. Mirror or Light - Reflects or shines light upward through the diaphragm to illuminate the specimen. 5. Nosepiece - Holds the different objective lenses; allows the lenses to rotate for viewing. 6. Base - Supports
Premium Telescope Lens Optics
INSTRUCTIONAL OBJECTIVES 1. Define Ocular: (eyepiece) Objective: provides magnification of 4‚ 10‚ 40‚ and 100 power Low power: 4X 10X High-and-dry: 40X Oil immersion objective: 100X Fine adjustment: is essential for final‚ sharp focusing Coarse adjustment: is used initially for rough focusing Parfocal: as you cane from one objective to another you will find that your microscope is very close to a final focus Sub stage condenser: light focusing lens Iris diaphragm: used to regulate the
Premium Microscope Optics Telescope