MBK – Lab Report Name: _Bri White_________ Section: ___________________ Observing Bacteria and Blood Questions: A. List the following parts of the microscope and describe the function of each A- Eyepiece: Viewing and identifying objects within the viewing field B- Main Tube: Connects eyepiece lenses to objective lenses C- Nosepiece: Holds objective lens and rotates them D- Objective Lens: Provides different focal lengths E- Stage: Holds the specimen or slide F- Diaphragm:
Premium Bacteria
HEALTHY LIVING (BY ROSELINE ONWUKAH‚ ABSUTH) Health as defined by World Health Organization is a state of complete physical‚ mental and social well-being and not merely the absence of disease or infirmity. Many factors affect your health. Some you cannot control‚ such as your genetic makeup or your age. But you can make changes to your lifestyle. By taking steps toward healthy living‚ you can help reduce your risk of heart disease‚ cancer‚ stroke and other serious diseases. For example‚
Premium Hypertension Diabetes mellitus Obesity
flood the smear with Crystal Violet for 60 seconds. Crystal violet is the primary stain that penetrates the cell wall and gives it the purple color. In the third step we used a clothespin to pick up the slide and tilting it at a 45 degree angle pouring the stain off; while gently rinsing the excess stain off with a stream of water from the plastic water battle. We continue to rinsing until the water ran clear of crystal violet. Next‚ in the fourth step we removed the clothespin‚ place the smear back
Premium Bacteria Microbiology Escherichia coli
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
Title: Counting the Number of Yeast Cells in a Suspension using Haemocytometer Objective: To estimate the number of cells of yeast per mm3 in five different dilutions of yeast suspension. Introduction: Biologists often need to count the density of cells in a liquid. “Density of cells” means “the number of cells per unit volume of liquid”. For example‚ they might want to find out the density of red blood cells in blood plasma‚ the density of bacteria in milk‚ or the population of Paramecium sp
Premium Volume Cell nucleus Water
PREVALENCE AND ASSOCIATED FACTORS FOR HIV AND TUBERCULOSIS CO INFECTION‚ DESSIE REFERRAL HOSPITAL & HEALTH CENTER‚ Getachew G/mariam‚ MSc‚ college of Dessie health sciences‚ Dessie‚ Fikre Enqusilasie ‚ PhD‚ school of public heath‚ Addis Ababa University‚ Addis Ababa‚ Ethiopia. Abstract Background: tuberculosis is the most serious opportunistic infection for people infected with HIV in developing countries. A majority of co infected cases are in sub Saharan Africa‚ where up
Premium Tuberculosis
Abstract Yeast is a fungus that exist almost everywhere in nature and it is also alive! For many years people baked bread‚ using yeast as an ingredient‚ without knowing just why it made bread dough bubble and rise. When you smell bread you mostly smell the scent of the yeast. This project looks how different conditions will cause the yeast to be most active during fermentation. We put a different mixture in each bottle along with 1/3 cup of water. My hypothesis was that when yeast is mixed with
Premium Yeast Carbon dioxide Bread
Amanda Lab Report 1 Microbiology Laboratory Title – Differentiating Organisms using the Gram Stain Introduction The experiment conducted was based upon the known attributes of two different groups of bacteria‚ those that are gram positive‚ and those that are gram negative. Using a specific staining procedure‚ it is possible to differentiate the two types under a microscope The gram stain method of differentiation is possible because of differences in the cell membrane between the two categories
Premium Staining Microbiology Gram staining
to the problem under investigation Yeast are eukaryotic species and make up approximately one percent of species in the kingdom Fungi. One of the most well studied yeast species‚ Saccharomyces cerevisiae‚ commonly known as bakers yeast‚ and also used in the fermentation of alcohols‚ is a model species for the study of eukaryotic cells. They are known to reproduce either sexually‚ by mitosis‚ or asexually‚ by budding‚ depending on environmental conditions. Yeast grow and reproduce by producing enzymes
Premium Yeast Enzyme
Why is it necessary to heat a loop to redness when flamed? Why is it necessary to cool a loop after it has been flamed BEFORE placing it into a bacterial culture? What are three qualities of an effective and useful bacterial smear? What would happen to a smear if you failed to heat fix the slide before staining? Differentiate between a differential stain and a special stain (how are they different‚ don’t simply identify the types of differential stains and special stains). What
Premium Staining Gram staining