Bacteriology

Bacteriology Lab Eric Li Kieran Dulmage Ms. Hillier SBI 3U February 17, 2016 March 8, 2016 Purpose One: To attempt to culture bacteria from swabs taken from different areas of a school environment and to observe the growth of bacteria. Purpose Two: To determine and observe the antibacterial properties of different substances, particularly silver nitrate (AgNO3) and copper sulfate (CuSO4). Hypothesis One: If the swabs are taken from areas that frequently come into contact with

Identification of an Unknown Bacterium #C-4 Laura Bromley Russell Sage College BIO 208L- Microbiology Lab Professor Anne Rea Due: April 14, 2015 Introduction When we speak of the word “bacteria” some individuals may not recognize how large of a role these tiny organisms play in our everyday lives. Some may jump to the conclusion that bacteria are related to the spread of germs or sickness among the human population. Most microbes are harmless or beneficial (Matthews, 2015) and a large majority

Identifying Two Unknown Species of Bacteria Materials and Methods Week 1, Day 1 (10 November 2000) The first day an unknown sample was assigned to each group of students. The first test applied was a gram stain to test for gram positive or gram-negative bacteria. The morphology of the two types of bacteria was viewed under the microscope and recorded. Then the sample was put on agar plates using the quadrant streak method for isolation. There were three agar plates; one was incubated

After several biochemical tests, Unknown Bacteria #30 was identified as Staphylococcus aureus. After growing the bacteria on Nutrient Agar to ensure a pure sample, it was Gram stained to determine morphology and arrangement. It was observed to be a Gram positive staphylococci. Then, the bacteria was inoculated onto a Mannitol Salt Agar plate. After incubation, it was observed to have bacterial growth and the agar was yellow in color. According to the lab manual (2), MSA contains 7.5% NaCl and

Bielschowsky Stain Similar to the Golgi stain, the Bielschowsky stain uses a silver compound, silver nitrate, as well as ammonium hydroxide to cause silver ions to adhere to the membranes of nervous tissue. This technique is especially useful in when looking and neurofibrillary tangles and senile plaque. When dyed, the color of the samples can vary depending on the amount of silver that binds to particular parts of the specimen. The Bielschowsky stain stains the neurofibrillary tangles, axons, and

UNKNOW BACTERIA LAB REPORT UNKNOWN 36 Introduction The purpose of this lab was to identify two unknown bacteria from a mixed culture. The reason for identification of unknown bacteria was to help students recognize different bacteria through different biochemical tests and characteristics. This is important in the medical field because identification of unknown bacteria can help treat a patient by knowing the contributing source of a disease. Also knowledge of different bacteria helped others

Hypothesis: If the bacteria turns out pink/red then the gram test is negative. Null Hypothesis: If the bacteria turns out pink/red then the gram test is not negative. Purpose: Identify the three morphological types of bacteria and use the Gram’s test to examine the bacteria infection by the stain technique. Differ between plant and animal cells and the different cellular components of eukaryotic cell. Describe the cell theory and explain its significance and the difference between prokaryotic and

Identification of Enterobacter Aerogenes Annie Banh November 15, 2014 Jason Atkins Unknown #19 The purpose of this study is to identify an unknown bacterium from a mixed culture. We identified the unknown bacteria through different biochemical tests and identified the many metabolic capabilities of the bacteria. Studying and discovering unknown bacteria is very important in the health field as it may lead to new medicines and innovations for current, existing diseases as well as any upcoming diseases

Maura Gongora 12th December, 2014 MCB 3020L- Section 018 Unknown #16 Abstract This report contains the background information on gram positive and gram negative bacteria, which will aid in understanding the use of specific laboratory experiments to distinguish between the two types of bacteria. Included are the materials and methods used to identify the gram positive and gram negative bacteria and methods which also differentiate between microbes of each group. The implications of the methods of

Autumn White Biology 258-05 November 26, 2012 Unknown #19 Enterbacteriaceae Enterobacter aerogenes ABSTRACT The objective of this report was to identify an unknown microorganism through several differential media tests. Over the course of a couple weeks, ten tests were performed. First, a gram stain was performed, indicating the bacterium was gram negative. An aerotolerance test determined that the bacterium was a facultative anaerobe. Next, a negative result in the