Bacteria

In this lab, we tried to observe one of important strategies that innate immune system following during invading the pathogenic bacteria that was phagocytosis. The innate immune system has various agents, which, play a significant role in protection the boy from foreign guests a like many different cells, portions, and chemic ataxic or chemical signaling that act the message for the body preparing for defenses. The white blood cells such as neutrophils, macrophages, and monocytes are capable…

infections in modern world. Recently we have seen certain types of bacteria develop resistance to antibiotics, labelled 'the superbugs '. We now a see the emergence of diseases that were once a thing of the past, sparking a worldwide panic. In 1929, microbiologist Alexander Fleming discovered penicillin, a naturally growing substance that could destroy certain types of bacteria. Penicillin is a mould that disintegrates the cell walls of bacteria, and after years of testing on animals and humans…

Objective Review: 1. Describe the purpose for using aseptic technique in collecting specimens Aseptic technique is used to prevent contamination of specimens by pathogenic organisms. The goal of maintaining asepsis is to not introduce any other organisms to the patient and prevent the spread of any organisms the patient may be carrying. Certain practices are used to help decrease this from occurring including cleaning, sanitizing, and disinfecting. Aseptic technique is an important process to…

environment. When animals are administered antibiotics, it kills off other bacteria and allows antibiotic resistant bacteria to survive and multiply. This causes contamination of animal waste, which then comes into contact with water, soil, or air (Food, Farm, Animals, and Drugs 2014). Horizontal gene transfer is also a big concern for the environment. In recent years, there has been an increase in antibiotic resistant bacteria found. The antibiotics that are given to the animals get in…

in the world, and remains so even though it has completely banned nontherapeutic antimicrobials from animal husbandry (Hungate, et al., “Ominous”). According to Martin, because of Denmark’s strict restraints on antibiotics, the levels of resistant bacteria have dropped in the livestock and humans in under two years (Martin, “Antibiotics”). Neither Salatin nor the Danish pork production have been met with negative consequences to their businesses because of the policy they have implemented…

The subject that is being read is Prokaryotes. An example of a prokaryote is bacteria. Bacteria traits are usually for a genus and are extremely important to the cell. Bacteria come within various shapes, such as spirals, cocci, rods, etc. These shapes are very useful for the prokaryotes. Prokaryotes do not have a developed nucleus instead the cell has a nucleoid which is also known as a nuclear bound and it lacks the cytoplasm membrane. Prokaryote structures consist of the flagella, pili, and…

were performed in order to identify which unknown is gram positive and gram negative. Using selective and differential media, like MacConkey agar which allows the growth of gram negative bacteria only that are able to ferment lactose. Also, mannitol agar was used which isolates and detects gram-positive bacteria. As well as blood agar, which is a nutritive media with differential properties in respect to hemolysis. The catalase test indicated catalase production and the coagulase test indicated…

Introduction Not only is the human body colonized with a large variety of microorganisms, the environment people live in is also filled with countless bacteria and other microorganisms, which are known as environmental microbes. More importantly, since people spend the majority of their lifetime in indoor environments such as schools, houses, and hospitals, the indoor surface microbes hence play a crucial role in human health. Scientists have discovered that indoor microorganisms are associated…

and light all affect the rate in which bacteria grow. The majority of bacteria flourish when the pH level is near neutral; the growth rate is highly affected if the pH is off by just a little. If too acidic, the amount of time it takes the bacteria to adjust to a new environment (lag time) is increased which slows the growth, the activity of enzymes is affected and the shape of molecules. Varying amounts of moisture are required for different types of bacteria. A low level water supply affects…

Let’s start the introduction by talking about our main target, Escherichia coli or how it is mostly unknown, E.coli, are a diverse and large group of bacteria found food, the environment, and in the intestinal tracts of humans and animals were it normally inhabits and it can also cause infection in other parts of the body, especially the urinary tract. Its name was given by a German physician called Theodor Escherich and it is the most common member of the genus Escherichia. E.coli is “a…