StudentShare solutions
Triangle menu
Bacteria
2 pages (500 words)
Nobody downloaded yet
...Bacteria Bacteria Bacteria pathogeni is the process through which bacteria cause the development of diseases on their hosts. Bacteria have different structures that influence their pathogenicity. The three structures that affect the process include the tissue fluid, which helps in their multiplication. Additionally, the flagella help the bacteria in their movements, and the fimbriae that attach them to their hosts. Flagella are the structures made of proteins that look like tails. They allow the bacteria to swim when the motor features in the plasma membrane spin them. They help the bacteria to move away from the chemicals that can harm them. They play a great role in increasing bacteria... ...
Preview
Bacteria
3 pages (750 words)
Nobody downloaded yet
...Bacteria Introduction Bacteria refer to single-celled living organisms, which are smaller than the smallest animal andplant cells. A bacterium contains cytoplasm enclosed by a membrane and a cell wall. The bacterial cell contains some genetic material with the purpose of carrying the body’s instructions to the cell. Bacteria differ in their nature as some contains additional features such as flagella, which helps them in moving and protecting the slim capsules. They also exist in varying shapes and sizes because some are rod shaped, round, comma-shaped and spiral. Some bacteria cause diseases while many others are important to human beings as they support them in living healthily (Storey 339...
Preview
Bacteria
5 pages (1250 words)
Nobody downloaded yet
...BACTERIA: Discussing Vibrio fischeri Due INTRODUCTION Bacteria exists essentially everywhere. There are dangerous bacteria that can make you sick and then there are a number of helpful bacteria that actually contribute to keeping you healthy. There is one particular bacterium, properly called, Vibrio fischeri. This bacterium is defined as a “heterotrophic gram-negative bacteria” that is commonly found in temperate and subtropical waters. In appearance it has an oblong shape with flagella on either end that help it to propel themselves along through their environment. Despite the fact, that their natural habitat is water it is actually inside or on the outside of fish and other sea animals... ...
Preview
Bacteria
4 pages (1000 words)
Nobody downloaded yet
...Bacteria Introduction Bacteria refer to single-celled living organisms, which are smaller than the smallest animal and plant cells. A bacterium contains cytoplasm enclosed by a membrane and a cell wall. The bacterial cell contains some genetic material with the purpose of carrying the body’s instructions to the cell. Bacteria differ in their nature as some contains additional features such as flagella, which helps them in moving and protecting the slim capsules. They also exist in varying shapes and sizes because some are rod shaped, round, comma-shaped and spiral. Some bacteria cause diseases while many others are...
Preview
Talking Bacteria
1 pages (250 words) , Download 1
...Bacteria” Due 11:59 PM on Monday, February 20th Each question is worth pt. 1. How might the knowledge of quorum sensing allow scientists to develop therapies for infectious disease? Quorum sensing describes the ways in which bacteria determine how many of them are in the vicinity. If enough are present, (a quorum), bacteria get down to business or play mischief. This communication between the bacteria is imperative, as they arrange themselves according to different functions and to form a complex. Quorum sensing provides a strategy for medicine- muck up the communication system of dangerous bacteria such as antibiotic-resistant... Scientific American Current Issues in Microbiology Article: “Talking...
Preview
Domain Bacteria
2 pages (500 words)
Nobody downloaded yet
...Bacteria are microorganisms, which usually consist of a single cell that lack chlorophyll. They are prokaryotes; that is their DNA (the cell genome) is not enclosed in a nucleus. Their basic structure is a capsule cosseted by a lipid membrane. Mostly, they reproduce by fission, which involves a single cell dividing to produce two new cells. Under favorable conditions, they multiply very rapidly, forming colonies of millions of organisms within a limited space. Steyn states that bacterial characteristics are among the most diverse in any life domain. Scientists characterize bacteria in a number of different ways. The relatedness between any two given metazoans such as a human and a slug... Introduction...
Preview
Microbiology Lab Report: Bacteria
4 pages (1000 words)
Nobody downloaded yet
...BACTERIA Bacteria are a type of prokaryotic microorganisms. Bacteria are neither wholly characteristically plants nor animals. They do not have a nucleus and well-defined cell organelles. They are of the size of a few micrometers in length and have various shapes ranging from rods, corpuscular, spirals etc. Bacteria were discovered by Anton Von Leeuwenhoek in 1676, which he called animalcules. Louis Pasteur in 1859 discovered that fermentation is an effect of microbial activity. Robert Koch postulated the ‘Germ Theory’ and went on to win the Nobel Prize in 1905. Paul Ehrlich discovered the first antibiotic by using dyes to...
Preview
HUNTING THE NIGHTMARE BACTERIA
2 pages (500 words)
Nobody downloaded yet
...BACTERIA Hunting The Nightmare Bacteria The antibacterial drugs that were developed after the Second World War have always had the threat of becoming inept, as bacteria acquired resistance. However, none of the health officials had estimated the drastic health damage that simple infections could bring about. As newer varieties of bacteria surfaced after acquiring resistance from several medicines, the diseases they spawned started becoming untreatable. The ‘hidden epidemic’ as experts have called it seems to have silently crept up into the lives of people across the globe and is being transmitted at a pace which no one is able to control. Bacterial infections long before... HUNTING THE NIGHTMARE...
Preview
Antibiotic-resistant bacteria
1 pages (250 words)
Nobody downloaded yet
...bacteria Antibiotic resistance (ABR) is a kind of resistance to drugs (antibiotics) threatening the successful prevention as well as treatment of an ever-rising variety of infections whose cause is bacteria. The available data that supports the hypothesis that ABR is on the rise comes from WHO annual reports (more so for 2014) on worldwide supervision of ABR discloses that resistance of antibiotics is no longer a future prediction; its right here with us. In 2012 for instance, there were around 450,000 fresh cases of multidrug-resistant TB (MDR-TB).Extensively drug-resistant TB (XDR-TB) has been discovered in over 92 countries (WHO, 2014). The problems that exist... Biology: Antibiotic-resistant bacteria ...
Preview
Bacteria and Antibiotic Resistance
6 pages (1500 words) , Download 1
...Bacteria and Antibiotic Resistance Bacteria and Antibiotic Resistance Development of antibiotics has opened a new era in disease treatment and understanding of the bacteria. During the next decade a host of prominent researchers systematically investigated the nature of bacteria and antibiotics, both its qualitative and its quantitative aspects. They found that antibiotics allow to neutralize or kill bacteria but 'learn' how to resist this impact. One important aspect of a scientific theory about a phenomenon is that it seeks to unravel and present in a clear way that phenomenon's causal properties and relations. "Virulence" and "pathogenicity" refer to the ability of bacteria to cause... Running Head...
Preview
Global warming and bacteria
5 pages (1250 words)
Nobody downloaded yet
...Bacteria Introduction The earth is surrounded by thick layer of gases thatkeep the planet warm and allows flora and fauna to thrive. These gases work like a blanket, without which the earth could be much colder, making it less suitable for survival of plants, animals and microbes. Climate change is being witnessed due to increment in temperatures across the globe. This makes the earth to heat up, resulting in a phenomenon referred to as global warming. The gases become thicker, they trap more heat within the atmosphere making the earth to be warmer. These extra gases are known as greenhouse gases and include carbon dioxide, methane and nitrous oxide which have rapidly increased... Global Warming and...
Preview
Identification of unknown Bacteria
6 pages (1500 words)
Nobody downloaded yet
...Bacteria The purpose of the experiment was to identify unknown bacteria from mixed culture #18 using biochemical and morphological test: The tests done include: Culturing and Gram staining for Morphology. The biochemical tests were: Lactose fermentation, Tryptophan digestion (Indole), Orinithine, methyl red and mannitol test. Basing on the results the most likely bacteria were: for the unknown A, was Klebsiella pneumoniae which is a typical rod shaped bacterium, a Gram-negative, lactose fermenting, facultative anaerobic, encapsulated and non-motile. For the unknown B: It was likely to be Salmonella Typhimurium bacteria which is a typical nonspore-forming rods, facultative... Identification of unknown...
Preview
Agglutination of bacteria
10 pages (2500 words)
Nobody downloaded yet
...Bacteria Introduction: Agglutination is defined as the method in which the particulates or cells get “clumped together” by the antibodies present in the solution. There is a variety of agglutination reactions commonly used like bacterial typing reaction, blood typing reaction, etc. (Katz par. 1). Lectins and antibodies are the two reagents used and they bind to the specific target and cause agglutination. Agglutination occurs when the reagents bind with the epitopes on two different surfaces and link them together. Lectins are proteins which bind to specific carbohydrate residues and epitopes are the regions on the microbial antigen where the antigen binds (Fisher & DiNuzzo... which are used...
Preview
Bacteria menningitis haemophilus influenza
5 pages (1250 words) , Download 1
...Bacteria Meningitis Haemophilus Influenza This bacterial infection engulfs the meninges that cover the brain cortex and thespinal cord. It occurs in humans only. The Haemophilus influenza bacterium causes the Haemophilus influenza meningitis. It leads to different diseases in children below the age of five years and it got a belief that it was the cause of the bacterial meningitis before the discovery of its vaccine. The bacterial infection results in the inflammation of the meninges and thus the symptoms (Evans and Brachman 4). It is responsible for lower respiratory tract infections in children. They are opportunistic pathogens and only become pronounced on exposure of the body to viral... Task:...
Preview
Flesh Eating Bacteria
18 pages (4500 words)
Nobody downloaded yet
...BACTERIA Introduction "The ability of bacteria to damage host tissues and cause disease may depend on the production and release of various types of poisonous substances, referred to as toxins" (Engelkirk and Burton, 2007). Consequently, Streptococcus pyogenes has been labeled as flesh eating bacterium. Nonetheless, Staphylococcus aureus, Bacillus anthracis, Clostridium perfringens, Mycobacterium leprae, and Propionibacterium acnes are also some of the other flesh eating bacteria or germs when the mode of cells and tissues destruction is taken as basis for common naming. They cause diseases so they are called pathogens. The pathogenicity of such bacteria is primarily... Order # 296346 FLESH EATING...
Preview
Bacteria resistance to antibiotic
4 pages (1000 words)
Nobody downloaded yet
...Bacteria to Antibiotics Introduction Antibiotics fight against bacteria and microbes, which cause infectious diseases in humans. The invention of antimicrobial chemotherapy has prolonged human longevity. This discovery is a landmark event of the medical sciences in the Twentieth Century. However, over a period of time, these microbes and bacteria have become immune to antibiotic medicines, and this poses a serious threat to the public health (Todar). Antibiotics inhibit the growth of bacteria in humans, animals and plants. Bacteria and microbes cause infectious diseases, and antibiotics can be used against diseases caused by bacteria and viruses. For instance... of the of the of the The Resistance of...
Preview
Bacteria cross contaminants
28 pages (7000 words)
Nobody downloaded yet
...bacteria. Catalase test indicated positive results on all the samples. According to the result findings, the most probable bacteria identified were all cocci, bacilli, and spirilla. Besides, sample ec5 and ec 6 seems to have high levels of cross contamination. These tests have been explored in the next section. Chapter 1: Introduction 1.1 Background By definition, Cross... ?To determine the level of cross-contamination during cleaning in the office environment The main objective of the study was to ascertain the level of cross-contamination during cleaning in an office environment. This was achieved by morphological and biochemical test. The following tests were done: For Morphological test; both...
Preview
Bacteria, Viruses, and Health
3 pages (750 words)
Nobody downloaded yet
...Bacteria, Viruses, and Health: Case Study E Neisseria gonorrhoeae is microorganism responsible for the illness. The bacteria attack the tract. This bacterium can grow in the urethra of men and reproductive tract of women. It is a species of Gram-negative coffee bean-shaped diplococcic bacteria. The bacterium is motile and the cause of their adherence to surface is type IV pili which is its most common virulence factor (Ryan & Ray, 2004). N. gonorrhoeae have the ability to pull 100,000 times their own weight, and it is believed that the pili causing this to happen are the strongest biological motor known to date. In 1879 Albert Ludwig...
Preview
Different Kinds of Bacteria
17 pages (4250 words)
Nobody downloaded yet
...bacteria have the ability to form huge assemblages on plant and animal surfaces and tissues, on biological sediments, detritus, soils and many other geological structures, as well as suspended flocs in water columns. Despite the fact that it is normally hard to investigate in situ, important biological traits are characterized to these assemblages, encompassing co-operative behavior, defense against predators, competitive advantage, antibiotics, physical disturbance and immune... ? The Pseudomonas Fluorescens SBW25 Wrinkly Spreader Biofilm requires attachment factor, Cellulose Fibre and LPS interactions to maintain Strength and Integrity Insert Name Course Tutor Institution Date Introduction Several...
Preview
Bacteria Beware. Iotron technology
2 pages (500 words)
Nobody downloaded yet
...Bacteria Beware Brenda claims that after analyzing conclusions by various researchers, E.coli and listeria bacterias are on the rise all across the North America. Iotron industry is working on a project to come up with a proprietary electron beam accelerator. Its key use will be to capitalize on the heightened food safety awareness. For the past two decades, trays of products have been rolling along a system of an hourglass conveyor into an electron beam accelerator. The products are swept from all the sides to kill pathogens using a series of rapid fire electrons. After several minutes, the products rollout sterilized. The electron beam accelerator will make use of radiation energy; however...
Preview
Growth of Bacteria in Solutions
2 pages (500 words)
Nobody downloaded yet
...Bacteria in Solutions of Different Concentration Lecturer Affiliation Due A critical examination of bacteria growth in solutions of different concentrations will provide facts about the scientific findings. In hypotonic solution, water concentration is higher outside the cell with the solute concentration being higher inside the cell. In this case, water enters the cell. Isotonic solutions have water concentration outside the cell being equal to solute concentration inside the cell, therefore, water enters the cell and moves out at an equal rate. Lastly, in hypertonic solution, water concentration is greater inside the cell with solute concentration being higher outside the cell; water... Growth of...
Preview
Acinetobacter baumannii Killer Hospital Bacteria
1 pages (250 words)
Nobody downloaded yet
...bacteria spreads and survives within a highly sanitized and sterile hospital environment. Further, it provided a means of warning to the potential patient to be wary... In terms of analyzing the piece of writing in question based on the quality of the science and/or experiments that were represented, it must be d that the piece of writing did not provide any experiments; only secondary research into experiments and discussions provided by other researchers/scientists. This does not make the essay weak; however, it does indicate that no primary research was performed in order to write it. Likewise, in terms of what was learned, the discussion provided a helpful starting point in understanding how bacter...
Preview
Do silver ions kill bacteria
1 pages (250 words)
Nobody downloaded yet
...bacteria. Materials and method: (liquid cultures assays) Prepare eight nutrient broth cultures by adding 25 ml of nutrient broth to each of eight of the centrifuge tubes. Add a colony of E. coli ATCC 15766 to each of four of the centrifuge tubes. Now add a colony of staphylococcus aureus ATCC 157293 to each of four of the centrifuge tubes. Incubate at 37C in a shaker incubator for overnight culture so... that the bacteria would be in log phage. After that spin cultures at 6000 PRM for 10 minutes. Remove supernatant, leaving 5 ml in each tube. Resuspend pellet in the remaining supernatant and add 1ml of sterile nutrient broth to disposable plastic curvette and blank...
Preview
Do silver ions kill bacteria
1 pages (250 words)
Nobody downloaded yet
...bacteria A number of researches have found the biochemical reaction of silver ions that lead to the inactivation of bacteria, protozoa, fungi, etc that are not protected with proteinaceous membranes. The exclusive chemisorption of atomic oxygen in aqueous and gaseous media on the surface of silver gives it freedom for the movement of oxygen anywhere in the crystal lattice of silver. This offers a reservoir of oxygen and exclusive features for silver to set apart in catalytic activity. It is noted from research that bulk silver in oxygen-infused media enhances the total destructive oxidation of micro-organisms (Davies,R.L. & Etris, S.F. 1997 p.107-114). The mechanism of inhibition... Do silver ions kill...
Preview
Biochemical identification of unknown bacteria
4 pages (1000 words)
Nobody downloaded yet
...bacteria Unknown ID 001 Nerjes Alsalman 3/18/09 Biochemical identification of unknown bacteria RESULTS: Morphological characteristics: Nutrient Agar Slant: The tube in 37oC: The amount of growth was slight, white in color, and had effuse form of growth. The tube in 25oC: The amount of growth was slight, white in color, and had Echinulate form of growth. Nutrient Agar plate: The colony characteristics on the plate looked like convex and round. Nutrient Broth: The surface and subsurface growth was flocculent, and the amount of sediments was granular. Fluid thioglycollate medium: The bacterium was facultative. The growth of bacteria... LAB REPORT Biochemical identification of unknown bacteria ...
Preview
ISOLATION AND IDENTIFICATION OF UNKNOWN BACTERIA
10 pages (2500 words) , Download 2
Premium quality
...BACTERIA INTRODUCTION Identification of bacteria as a causative agents of diseases, epidemics, contaminated food and other sources of infection and illness is a process that has growing significance in the modern world. Bacteria are a causative agents for many diseases in humans and domestic animals that and can be a cause of significant health impact on the human population (Scallan et al. 2011). Bacteria also can contaminate and impair the process of food production and packagind that can lead to significant economic impact but more importantly can be a source of more widespread morbidity in human population and a mechanism of generation of widespread... ?ISOLATION AND IDENTIFICATION OF UNKNOWN...
Preview
Lab Report: Nutritional Growth of Bacteria
8 pages (2000 words)
Nobody downloaded yet
...Bacteria This study focused on detecting and observing the bacterial growth by supplying and providing it the nutrients needed to grow its colony. At the end of this study, the facts that deal with the role of various nutrients in the bacterial growth were presented for analysis and discussion. It comprises the speed of its growth. This also deals with the entire period of time which can hold and manipulate a number of not just a single bacteria but the growth of the whole family of the microorganisms we have. We considered the factors that affects this bacteria's such as the Escherichia Coli, Staphylococcus aureus, Enterobacter aerogenes, Staphylococcus... epidermiditis, Salmonella...
Preview
A wall of funnels concentrates swimming bacteria
1 pages (250 words)
Nobody downloaded yet
...bacteria Introduction Survival in a changing environment is crucial to the micro organisms that are self propelled. The competition strategies that the self-propelled organisms use is different, and their survival depends on the speed that they can quickly adapt to the strategies they use. The mobility researches that have been carried out in the past years are acknowledged to have a specific focus in the explanation of the microorganisms’ behavior (Martinko & Madigan 25). The research on the mobility of the microorganisms is aimed at demonstrating how simple microstructures can have an effect on the swimming bacteria. It also shows how... these microstructures can affect the living,...
Preview
Isolation and identification of unknown bacteria
11 pages (2750 words) , Download 2
...BACTERIA INTRODUCTION Identification of bacteria as a causative agents of diseases, epidemics, contaminated food and other sources of infection and illness is a process that has growing significance in the modern world. Bacteria are a causative agents for many diseases in humans and domestic animals that and can be a cause of significant health impact on the human population (Scallan et al. 2011). Bacteria also can contaminate and impair the process of food production and packagind that can lead to significant economic impact but more importantly can be a source of more widespread morbidity in human population and a mechanism of generation of widespread... ?ISOLATION AND IDENTIFICATION OF UNKNOWN...
Preview
Bacteria that Boost the Immune System
5 pages (1250 words)
Nobody downloaded yet
...BACTERIA THAT BOOST THE IMMUNE SYSTEM Bacteria that Boost the Immune System Human Anatomy of you Introduction In the field of cellular biology, science and technology has made its tremendous advancement in the society and apply its changes in the produce of nature without compromising the safety to offer alternatives that assist healing take its natural course to make the body healthy (Immune Systems, 2011). Bacteria are damaging organisms that are known to cause simple to life threatening diseases in the human beings and animals. They are known for their various characteristics such as extreme flexibility, its ability to reproduce, and capacity to grow rapidly. Certain bacteria... ? Running Head:...
Preview
Dichotomus key gram postive bacteria coccus
1 pages (250 words)
Nobody downloaded yet
...bacteria such as Eschericia, Pseudomonas, Shigella and Salmonella, Staphylococcus and Micrococcus bacteria are gram-positive. It is also during this initial test that we can also check the shape of the bacteria being identified. We know that Staphylococcus and Micrococcus are circular in shape, unlike the gram-(+) Bacilli that is more elongated and rod-like in shape. However, so is the gram-(+) Streptococcus and Enterococcus. In fact, they are collectively known as the gram... We first confirm that the unidentified bacterial species is a gram-positive one, or it has a thick peptidoglycan layer that absorbs the crystal violet stain during the gram staining test. This is because unlike other common...
Preview
BIOL 302: Bacteria, Viruses and Health
2 pages (500 words)
Nobody downloaded yet
...Bacteria, Viruses and Health MULTIPLE CHOICE QUIZ 2 An organism having pili has the advantage over one which lacks pili because it can A. move actively. B. obtain nutrients from beef broth. C. stain easily. D. attach to various surfaces including tissue. E. synthesize glycoproteins. 2 The peptidoglycan of a bacterium A. is located primarily in the spore. B. together with protein is formed in the capsule. C. cannot be synthesized if penicillin is present. D. is associated with the cell membrane. E. is found in Gram-positive bacteria only. 3 Bacteria reproduce by a process known as A. meiosis. B. binary fission. C. mitosis. D. spontaneous generation. 4 Spherical... Due BIOL 302:...
Preview
What Duration of Ultraviolet Exposure Kills Bacteria
3 pages (750 words)
Nobody downloaded yet
...Bacteria Introduction The law of Arrhenius, which was earlier proposed to be describing temperature reliance of precise reaction speed in chemical reaction, seems not to be properly describing the effects of temperature on the growth of bacterial. This has lead to modification of the law by replacing the speed of reaction constant by the growth rate constant. The modification proved not to be ideal since the graph s obtained after plotting the logarithm growth rate constant against reciprocal absolute temperature results into curves instead of a straight line. It is good to note that the same relationship is applicable to the breakdown of nucleotide... ? Duration of Ultraviolet Exposure that Kills...
Preview
Gram-Positive and Acid-Fast Bacteria
14 pages (3500 words)
Nobody downloaded yet
...Bacteria What is the purpose of general growth media, selective media, and differential media? Give examples of each. Growth media is a gel or rather a liquid that is used to support the growth of the microorganism or small plants. Examples include; nutrient broths. Selective medium is a technique used to grow particular microorganism for instance if an organism is resistant to an individual antibody i.e. ampicillin then that antibiotic is added to the growth medium in order to prevent cells that do not have resistance from growing. Example, Hektoen enteric agar. Differential media is a method that is utilized to distinguish one microorganism from the next in situations...  Gram-Positive and Acid-Fast...
Preview
THE EVOLUTION OF DRUG RESISTANCE IN VIRUSES AND BACTERIA
5 pages (1250 words)
Nobody downloaded yet
...Bacteria Nam The Evolution of Drug Resistance in Viruses and Bacteria Introduction Therise in the frequency of drug resistance in viruses and bacteria in the contemporary medicine world is notable in a wide range of drugs used to treat different varieties of diseases. Such resistance may also result from the evolution of new genes in viruses and bacteria where such genes have drug-resistant qualities. Drug resistance is a designed feature involving pre-existing genes that enable viruses and bacteria to compete against drug components that make entry into their environment. The drug resistance developed by viruses and bacteria leads to a reduction... The Evolution of Drug Resistance in Viruses and...
Preview
Molecular Identification of DMS-Producing Bacteria Isolated from Marine Algae
61 pages (15250 words)
Nobody downloaded yet
...Bacteria Isolated from Marine Algae By: Rami Abdullah Aldagrer Supervisor: Dr. Micheal Steinke Date: 09-09-2011 Acknowledgements It is a great pleasure to be able to complete this dissertation with the best possible means and under the best possible supervision. The assistance, help and guidance of many people went into bringing my attempts to fruition. I heartily thank my supervisor Dr. Michael Steinke, for his unfailing and relentless support, and insightful remarks. His guidance in the conception and interpretation of this study granted me the confidence and multiplied my... ? OF ESSEX DEPARTMENT OF BIOLOGICAL SCIENCES MSc. DEGREE IN BIOTECHNOLOGY of project: Molecular Identification of DMS-Producing...
Preview
Bacteria and Human Health and Viruses and Humna Health
10 pages (2500 words)
Nobody downloaded yet
...Bacteria and Human Health Bacteria are unicellular microorganisms that are prokaryotic in nature and have hundreds of species. An average size of a bacteria organism ranges from 0.2µm to 2µm and in favorable conditions it can multiply in millions of colonies by binary fission. Being prokaryotic, bacteria lack the cytoskeleton and the nucleus. The major components of a bacteria cell are the cytoplasm and the cell envelope while some bacteria also have flagella or pili for movement. Fortunately, nature has a consistent check on the growth of bacteria otherwise it a single...
Preview
Factors that Affect Detachment of Bacteria from Biofilm and Interactions between Free Bacteria and Those in the Biofilm
2 pages (500 words)
Nobody downloaded yet
...bacteria from biofilm and interactions between free bacteria and those in the biofilm Biofilms are complex structures that grown on boundaries between media, specifically the interfaces between liquid/liquid media, solid/liquid and air/solid . They contain a range of different microbes including, but not limited to microalgae, protozoan and bacteria. Biofilms can contain pathogenic forms of microbes . They have been proposed as a mechanism of defense for bacteria, and consist of a matrix that is able to adhere to liquid or solid surfaces . Biofilms have been shown to be more than 500 times more resistant than... ?Research Proposal for Master of Science in Microbiology Factors that affect detachment of...
Preview
Beneficial Bacteria As Probiotics For HIV In Breastfeeding Children
4 pages (1000 words)
Nobody downloaded yet
...Bacteria As Probiotics For HIV In Breastfeeding Children Microbial dietary supplements usually referred to as probiotics are already in use for beneficial health effects to individuals (Boyle, Robin-Browne and Tang, 2006). Ongoing studies in the application of breast milk bacteria as probiotics in prevention of mother-child HIV transmission during breastfeeding are reporting encouraging results that due to the weight of the HIV issue naturally find their way to popular media. From here it can be visualized that they may cause great anticipation among the public. This study seeks to scientifically critique the studies presented in one such media report and provide a conclusion based... Beneficial...
Preview
Molecular Identification of DMS-Producing Bacteria Isolated from Marine Algae
3 pages (750 words) , Download 0
Free
...Bacteria Isolated from Marine Algae Rami Aldagrer Background Dimethylsulfide (DMS) is recognized as the predominant form of sulfur liberated from the oceans to the atmosphere, representing a fundamental compound to the global sulfur cycle (Johnston et al., 2007; Johnston et al., 2008; Steinke et al., 2011). Several studies have indicated that DMS emission demonstrates a significant effect on the magnitude of the earth’s cloud cover, influencing the planet’s climate in the process (Charlson et al., 1987; Watson and Liss, 1998). Specifically, this gas acts as a nucleus for cloud formation which reduces the amount of radiation from the sun that reaches... ? Molecular Identification of DMS-Producing Bacteria ...
Preview
Describing of how bacteria clean up nuclear waste
10 pages (2500 words)
Nobody downloaded yet
...bacteria have been identified to belong... ? [Type the document [Type the document sub [Pick the [Type the company pc BIOLOGY HERD IMMUNITY INTRODUCTION Herd immunity is a widely used term with reference to microbial behaviour that is variously interpreted by different authors. John & Samuel (2000) define herd immunity as “the proportion of subjects with immunity in a given population”. Herd immunity can be measured in terms of a chosen immune parameter and the number of individuals in population observed to be positive for the parameter refers to herd immunity of that population for the specific immune parameter. A closely related and often confused term is herd effect. It is used to describe the...
Preview
Scientific paper: Comparing the effect of different antibiotics on Gram-Negative bacteria culture
1 pages (250 words)
Nobody downloaded yet
...bacteria culture Distinguishing between Gram +ve and Gram -ve bacteria is very important for a doctor to find a cure for any infection. A survey by the New York Times showed that antibiotics have a greater effect on bacteria (POLLACK). The report indicates that most of the gram-negative bacteria show a lot of resistance to antibiotic drugs. Germ falls in a category of bacteria, which has killed millions of people in the world. Gram negative has effects on the bacteria due to its nature of staining (Baron S). While taking an account of the cell structure, we can easily distinguish between gram positive and gram negative staining... which if enters the body causes toxic infections. To avoid...
Preview
Discuss the similarities and differences between organisms in the domains Bacteria and Archaea
1 pages (250 words)
Nobody downloaded yet
...bacteria. But not all archaea and bacteria are prokaryotes. Therefore, there is need to explain the difference and similarities of the two. Below find the similarities and the differences between these microorganisms. First, archaea and bacteria contain the same size and shape they are found occurring in cocci, rods, spiral, coiled and plates. The cell structure of bacteria and archaea is the same only that their composition and structure organization differ in the case of archaea. Bacteria and archaea do not have inner membranes but have a cell wall, therefore... Essay, Biology al Affiliation There are two types of microorganisms widely divided into Prokaryotes that include archaea and...
Preview
Introduction of crude oil biodegrading by some marine bacteria and reduce sulphur component
1 pages (250 words)
Nobody downloaded yet
...bacteria and fungi play a role in the degradation of marine oil to usable components with the help of their enzymes (Patin, n.d). The hydrocarbons present in the petroleum products are effectively degraded by various Pseudomonas and Penicillum species (Cerniglia & Perry, 2007). The natural process of degradation of marine oil is time-consuming as a result extensive damage can occur to the marine organisms and indirectly upon humans when... Introduction The role of microorganisms in degradation of marine oil spills is being constantly investigated as the fate of petroleum compounds in marine environment depends on their transformation or degradation by microbes. More than hundred known species of bacteria ...
Preview
Article Summary: News on Detection of Bacterial Infection: Polymers Fluoresce in the Presence of Bacteria
1 pages (250 words) , Download 1
...Bacteria: Fluorescent Polymers. A team of researchers at the of Sheffield, headed by Dr. Steve Rimmer, has developed fluorescent polymers to detect the presence of bacteria in wounds. Research shows that when a polymer is engineered, by irreversibly attaching it to an antibiotic, then combining it with a fluorescent dye, and applied on a wound in a gel, the polymer recognizes and responds to the presence of both gram positive and gram negative bacteria. The polymer attaches itself to the bacteria, and changes its shape, emitting fluorescent signals. A hand-held ultra-violet lamp can detect these signals. These fluorescent polymers can serve as powerful clinical tools... Detection of Bacteria:...
Preview
E. Coli Bacteria Engineered to Eat Switchgrass and Make Transportation Fuels
4 pages (1000 words)
Nobody downloaded yet
...Bacteria Engineered to Eat Switchgrass and Make Transportation Fuels Q1.Who are the scientists who conducted the study? For along period of time scientist and researcher were not able to understand how bacteria could breakdown substances such as phosphonic acids, persistence and other pollutants of the environment. These are normally components of many common medicinal yields, detergents and chemicals used to kill herbs. With continuous research, it has now become possible as Fern R. McSorley a Chemistry graduate student of the Queens University in collaboration with Bjarne Jochimsen, a molecular Biology student in at Aarhus University and Bjarne Hove-Jensen, a student at the Biology... ? E. Coli...
Preview
I'm attaching a document. Read the background information about bacteria, antibiotics, and the evolution of antibiotic resistance at this site
2 pages (500 words)
Nobody downloaded yet
...bacteria in spoiled food whereas usual intestinal infection could be spread also through drinking water, dirty hands or table dishes. Actually infection can be disseminated if three conditions are available: source of infection (sick person or spoiled food, or polluted environment), way of transmission (e.g. water or food) and susceptible person. If any of these factors... food and poor personal hygiene – these factors determine the majority of gastrointestinal infections. In the described case (see pdf file) wecan suppose intestinal infection. There is a difference between the microbial food poisoning and classic infection. Protamine poisoning depends on the presence of huge amount of bacteria in...
Preview
Evaluate in detail two techniques which could be used for the identification of virulence factors in bacteria. Discuss, with reasons, which technique is most suitable (advantages and limitations)
2 pages (500 words)
Nobody downloaded yet
...Bacteria Two techniques for the identification of Virulence Factors in Bacteria Virulence factors are actually molecules secreted by pathogens like bacteria to achieve their basic functional needs, such as colonization, immunoevasion, immunosuppression, etc. identifying virulence factors help scientists discover how bacteria cause certain diseases, and how we can overcome them. Locating the virulence gene and studying it can assist in the creation of various lifesaving drugs, because these factors actually inhibit some of the host cell’s functions, causing various infections that need certain drugs to be cured (Wassenaar). Virulence factors can be identified in several ways. One... Virulence Factors In...
Preview
Interaction between water bacteria and the pathogen in particular when they live close to each other in bio-film and factor that induce the detachment of pathogen in the bio-film
3 pages (750 words)
Nobody downloaded yet
...bacteria from biofilm and interactions between free bacteria and those in the biofilm Biofilms are complex structures that grown on boundaries between media, specifically the interfaces between liquid/liquid media, solid/liquid and air/solid . They contain a range of different microbes including, but not limited to microalgae, protozoan and bacteria. Biofilms can contain pathogenic forms of microbes . They have been proposed as a mechanism of defense for bacteria, and consist of a matrix that is able to adhere to liquid or solid surfaces . Biofilms have been shown to be more than 500 times more resistant than... Research Proposal for Master of Science in Microbiology Factors that affect detachment of...
Preview
Antiseptics ( 70%, 91% Isopropyl and Iodine) on Ecoli growth
3 pages (750 words)
Nobody downloaded yet
...Bacteria Growth Research has deployed efforts to determine various organisms that contribute towards human infections such as bacteria. Bacteria have a variety of environmental and nutritive necessities for their survival and growth. There are three groups if bacteria that include- i. Aerobic bacteria These bacteria are favored by the presence of oxygen, which they require throughout for a progressive growth and existence. ii. Anaerobic bacteria These bacteria cannot thrive in an environment that has oxygen and cause food poisoning. Anaerobic bacteria live under deep waters where there is absence of oxygen. iii. Facultative... Lab Report Introduction on Antiseptics Concentration Effect on E Coli...
Preview
1 - 50 results of 500 items