Bacteriology Essays

Tuberculosis infection can now be confirmed using a new urine test developed by a group of researchers. The new urine test uses a type of dye on tiny molecular cages that contain a sugar type that coats tuberculosis bacteria. The researchers reported that the test can be used to diagnose anyone at any stage of the disease. Tuberculosis is a respiratory disease caused by the bacteria Mycobacterium tuberculosis. The disease primarily infects the lungs but as it progress, the infection can spread to

Introduction: In the field of microbiology being able to identify a specific bacterial species is an important skill. In order to discover and being able to identify any microbial bacteria, there a list of test one must perform in order to come with the right microorganism. It is fundamental to be aware of the risk of toxify, the resistance to antibiotics and determining

In experiment three, Gram staining was used to characterize bacteria, either gram positive or gram negative. The Bacillus slide was Gram positive for the results displaying that it had a strong affinity for crystal violet on applying the iodine. The Bacillus slide stained the color of violet because the thicker and richer the layer of the peptidoglycan walls, the more retention of the stain. While the Pseudomonas slide stained the color of red. The Pseudomonas slide was Gram negative due to the lack

The main purpose of this study is to identify the given unknown bacteria by gram staining and a series of biochemical test. There are many types of bacteria and they produce different enzymes. However, Some bacteria produces same enzymes, so specific tests were done to identify the particular enzymes. There are four main types of Gram-negative bacteria, which are Escherichia coli, Klebsiella pneumonia, Enterobacter aerogenes, and Salmonella typhimurium. Therefore, the unknown could be any of these

“Post-Lab Questions” What ingredient(s) makes MacConkey agar selective for Gram-negative bacteria? The ingredients that make MacConkey’s Agar selective is a pH indicator (neutral red), and a disaccharide ( Lactose) “2. What types of bacteria are inhibited on MacConkey agar?” Gram-Positive bacteria that are inhibited with MacConkey agar due to crystal violet and bile salt presence . “3. What ingredient(s) makes MacConkey agar differential?” MacConkey agar are inhibited by a pH indicator (neutral

Major unknown #202 was given out by the instructor, and the unknown bacterium was streaked out on a Trypticase Soy Agar tube and plate to inoculating the bacterium and incubating. After incubated and grown the morphology was observed and several Gram stains were performed to determinate if the bacterium were gram positive or negative, and the morphology of the bacterium. The Gram Stain of my major unknown #202 was determinate to be Gram negative bacilli, and was double checked by the Gram check slide

After a gram stain was done unknown #257 was identified as a gram positive organism because when observed under the microscope the organism appeared purple with cocci in clusters. The organism was also catalase positive which means that it produced enzyme catalase and bubbled when hydrogen peroxide was added to it. Three test were conducted based on the result of the gram staining procedure. Blood agar with a Novobiocin disk was chosen as well as DNase (DNA) and Mannitol Salts (MSA) agar. The Blood

sides. Every type of bacteria has a different morphology, it is important to distinguish it to aide in identifying bacteria. The last test that should be performed after reviewing the results of the streak plate is the Catalase test. This test is used to see if the bacteria produces catalase, which is an enzyme that breaks down hydrogen peroxide (H2O2) into H20 and O2. If this test is positive, the hydrogen peroxide which is dropped onto the colonies in the streak plate will begin to bubble. If bubbles

Analysis of Major Unknown 3C Summary: A series of tests was done with Microbe 3C. A Gram stain was done and the sample was gram positive. A streak plate was completed revealing that the microbe was clear/white in color, margin was entire, shape was circular, elevation was convex/raised, and the opacity was translucent. The last test done was the sucrose test. It starts orange and turns yellow positive for microbe 3C Klebsiella oxytoca (Professor Brady, Personal Communication). Procedure

In the laboratory, identification of an unknown bacterium is often necessary. In the lab, a random sample consisting of three different bacteria was selected. The sample contained one gram-positive, one gram-negative paracolon, and one gram-negative coliform. The purpose of the experiment is to identify each of the three species that the mixture contained. After receiving an unknown mixture, the sample was streaked for isolation onto TSA, blood agar, and MacConkey plates. Each plate serves as a first

infectious diseases [2]. The microbiology laboratory has many section such as bacteriology, parasitology, virology and mycology [3]. Microbiology laboratory has many sections and each section do many type of test. The time of get a result of test is depend to the test, some of test finished is many hours and another may be many days. The bacteriology laboratory has two types are aerobic and anaerobic. The bacteriology laboratory is detecting which bacteria is cause the infection disease in the patient

If you had seen Frederick Novy at the University of Michigan between 1888 and 1933, you might have dismissed him as an eccentric scientist in a threadbare suit and mismatched coat, careening across campus on his bicycle, oblivious to much except the thoughts in his head. You could have even shrugged at the way he holed up in his dim and cramped lab until late at night, poring over data and experiments, almost to obsession. But to do so would be to miss his extraordinary contributions to medical

Alexander Fleming once said, “One sometimes finds what one is not looking for” (Alexander Fleming Quotes). Alexander Fleming was someone who accidentally found something that changed the world. In 1928 on September 28 Alexander Fleming changed the world by discovering penicillin. Penicillin is an antibiotic that destroys bacteria and has saved many lives since its discovery. Alexander Fleming is important because of who he was, his discovery of penicillin, and how his discovery is significant to

Being able to determining the identity of a bacterium is essential as treatments for different types of bacteria vary greatly. Without correct and timely identification of a bacterium, a patient’s condition is likely to worsen and the probability of death rises due to inaccurate treatment. The identification of bacteria is also crucial in the prevention of bacterial diseases. Identification of bacteria also aids the selection of antibiotics used against them. This assists in the reduction of the

and a disease of the poor and immigrants. The discovery also led to the rise of two different groups: public health groups wanting to prevent tuberculosis and the sanatorium looking for cures to tuberculosis. The start of the widespread belief in bacteriology led to the aggressive promotion of public health. Americans wanted to get rid of tuberculosis from America because they saw themselves as a modernizing and sophisticated nation. People feared those with tuberculosis and viewed the infected as either

He operated o the thinking that in order to be rid of these illnesses, he had to perform surgical bacteriology – cy=utting away the source of the infection. Cotton’s entry to the Trenton hospital emphasized his belief, as he saw the filthy misery the patients were in, ith abusive guards and aides. He observed that each of the patients had rotted teeth

There are many people in history who were essential for the world to become what is it today. They have made discoveries and inventions that have made the lives of people easier and better. Paracelsus and Alexander Fleming had an impact on the world by, advancing it in the medical field through their discoveries and achievements. These men have made differences in the same area and in different ones. Alexander fleming was born on August 6, 1881. He had an interest in the medical field, entering

The Civil War was a vital event that occurred in America’s historical consciousness and in order to understand the medical aspect of the war, first defining exactly what the war was about is fundamental. According to Dixon, the Civil War transpired in 1861-1865 and it was essentially about the “uncompromising differences between the free and slave states over the power of the national government to prohibit slavery in the territories that had not yet become states.” Significant battles occurred

who would soon grow up loving microbiology and wanting to make a career out of it. He enrolled at Penn University, where he was taking classes like math, chemistry, and zoology. One course in particular that stood out to Dr. Hayflick was bacteriology. Bacteriology is now known as microbiology, the study of viruses, bacteria, and other microscopic organisms. Dr. Hayflick was fascinated one day in class when his technician walked in with several test tubes filled with agar. His technician used a fine

involving primarily white male physicians in the eighteenth century. Even with the presence of physicians, women retain a degree of control over their birthing experiences, maintaining their network of female support. However, the introduction of bacteriology in the twentieth century prompted a shift towards hospital childbirth. Hospitals promised sterile environments, reducing the risk of post-partum infections, but at the cost of women’s loss of control over their birthing experiences, and the support