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Bacteria Essay Examples

Agglutination of bacteria
Certain chemical and physical properties of the medium in which the organism is suspended influence the degree of dispersion of the cells like in acid agglutination. Sme “variant” forms of bacteria are also seen to agglutinate on addition of electrolytes (Shrigley). Gam positive bacteria like...
Pages: 8 (2000 words) , Thesis Proposal , Medical science
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Global warming and bacteria
Researchers have established that these microbes have the ability to remove about 10 billion tonnes of carbon from the air each year. Wth this information, sientists hope to find out reasons as to why these cyanobacteria are successful in their photosynthesis and the ability to...
Pages: 5 (1250 words) , Research Paper , Medical science
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Bacteria menningitis haemophilus influenza
This makes them resistant to the H. ifluenza vaccine that is induced to vaccinate against the bacteria. Tis leads to conditions like pneumonia and otitis media often seen in children, wich are the complications, asociated with meningitis. Te pathogenesis of the bacteria is not well...
Pages: 5 (1250 words) , Essay , Biology
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Bacteria resistance to antibiotic
Pharmaceutical companies and medical researchers are developing new and more powerful antibiotics. However, bacteria become resistant to these antibiotics. For instance, Vanomycin, a powerful antibiotic that was used in the last resort against bacterial infections, has become ineffective against bacteria (Resistance to antibodies is...
Pages: 4 (1000 words) , Essay
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Agglutination of bacteria
Certain chemical and physical properties of the medium in which the organism is suspended influence the degree of dispersion of the cells like in acid agglutination. Sme “variant” forms of bacteria are also seen to agglutinate on addition of electrolytes (Shrigley). Gam positive bacteria like...
Pages: 10 (2500 words) , Thesis Proposal , Medical science
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Identification of unknown Bacteria
Neutral red acts as a pH indicator. Klebsiella pneumoniae bacteria is known to be lactose fermenters hence unknown A while Salmonella Typhimurium bacteria is not lactose fermentor thus unknown B. Te orinithine decarboxylase test is important for Enterobacteriaceae differentiation. M-VP broth for Methyl Red test...
Pages: 6 (1500 words) , Research Paper , Biology
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Archaea, Eukaryotes and Bacteria
In the historical evidence, a researcher by the Carl Woese proved that indeed Archaea, bacteria and eukaryotes currently which different domains had their emergence from a single organism. There are so many explanations regarding the evolution of these domains. Some researchers argue that both bacteria...
Pages: 5 (1250 words) , Essay , Biology
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Multiple Antibiotic Resistant Pathogenic Bacteria
Diseases are the most common causes of death in humans. It contributes to the shortening of life expectancy of a human. It can also kill a human instantly without proper treatment and cure. Many diseases are caused by abnormal function of the body parts of...
Pages: 13 (3563 words) , Case Study , Biology
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Biotechnology ,Production of Lactic acid bacteria
Lactic acid bacteria produces various compounds during fermentation including organic acids, dacetyl hydrogen peroxide and bactericidal protein that not only gives the desirable texture, clour, tstes or smell but also helps to inhibit the growth of pathogenic bacteria and other microorganisms (Lindgren,...
Pages: 10 (2500 words) , Essay , Medical science
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Biochemical identification of unknown bacteria
While translucent, convex, round and glossy appearance of colony indicates presence of E.coli having fundamental characteristic of this kind, but needs to be investigated further for further confirmation. 3) Nutrient broth: To investigate growth pattern of given culture in liquid media, nutrient broth was inoculated...
Pages: 4 (1000 words) , Lab Report , Biology
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Bacteria That May Cause Urinary Tract Infections
The E. coli is responsible for many uncomplicated cases of cystitis in females, particularly the young women. The bacteria are usually harmless with its origin being the intestines. When the bacteria invade the urinary tract, they can colonize the bladder and result in infections. Enterococci,...
Pages: 8 (2000 words) , Essay , Medical science
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Are Antibiotic Resistance Bacteria Unstoppable
Before the discovery of antibiotics, dseases fatally ravaged mankind. Sreptococcus pyogenes, fr instance, ws responsible for over half of the post-birth deaths and was a major cause of deaths from burns. Saphylococcus aureus on the other hand killed 80% of those with infected wounds with...
Pages: 9 (2250 words) , Essay , Medical science
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Microbiology on Bacteria, Viruses and Fungi
Viruses are identified as unicellular microorganisms having either RNA or DNA, cpable of reproducing inside other living cells (Kango, 2010). Vruses lack cellular organization and enzymes necessary for the synthesis of nucleic acids and protein. Tey depend on enzymes of the host cells to synthesize...
Pages: 3 (750 words) , Case Study , Biology
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Gram-Positive and Acid-Fast Bacteria
Pathogens are spread by touching unclean or rather infected surfaces. I order to prevent the spread of pathogen people ought to maintain a proper personal hygiene, oserving frequent hand wash after contact with people or surfaces as well as regular disinfection and cleaning. Te gram...
Pages: 14 (3500 words) , Coursework , Medical science
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Causes of Drug Resistance in Bacteria and Viruses
The ability of viruses and bacteria to become resistant to drugs continues to expand for a myriad of reasons: antibiotics over-prescription, failure to complete drug doses, the application of drugs in organisms, especially as growth enhancers in the food industry, poor health facility hygiene, increased...
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Beneficial Bacteria As Probiotics For HIV In Breastfeeding Children
The first study reported in the article is by Ruth Connor and fellow workers whose objectives were to isolate the bacteria responsible for inhibition of HIV infectivity and to determine whether this ability (inhibition of HIV) was due to specific structural components of the bacteria...
Pages: 4 (1000 words) , Essay , Biology
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Bacteria and Human Health and Viruses and Humna Health
There are more than 500 species of bacteria in the human body and most of them are useful for many functions that take place in the human body. Tere are chances that due to some conditions, te growth of bacteria becomes harmful to the body,...
Pages: 10 (2500 words) , Research Paper
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Antimicrobial Resistance Bacteria and Microorganisms
A new technique for the control of hospital Methicillin resistant isolates though present were not notably troublesome because of the emergence and prevalence of microbial resistance especially MRSA( methicillin-resistant Staphylococcus aureus) in hospitals. The major antibiotic-resistant pathogen associated with nosocomial infection. It was reported...
Pages: 4 (1000 words) , Essay , Biology
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How Dangerous Are Bacteria for the Human Body
The main motive to perform this study was to determine the presence of unknown microorganisms present in the provided sample. This study encompasses the classification of bacteria based on their chemical reactions temperature, pH levels, and osmoregulation. It is very imperative to classify the bacteria....
Pages: 5 (1377 words) , Lab Report , Biology
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The Significance of Bacteria in the Ecology
In mitosis process, oe nucleus divides into two identical nuclei while meiosis is the process by which one nucleus with two copies of each chromosome divides into four nuclei with one copy of each chromosome. Teir heterotrophic nature made them interact with saprophytes, prasites and...
Pages: 8 (2000 words) , Research Paper , Biology
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E. Coli Bacteria Engineered to Eat Switchgrass and Make Transportation Fuels
An estimate found out that exceeding numbers of phosphonic acids get released into the environment each year especially in the western countries. Bing that it cannot be broken down with ease would mean that most of it will end up as pollutant to the underground...
Pages: 4 (1000 words) , Research Paper , Biology
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Comparing the Effect of Different Antibiotics on Gram-Negative Bacteria Culture
Two is that it is relatively common, ad its modes of actions and effects on humans have been widely studied and discussed in the literature. Fr instance, i is known that it has differing activities for a number of antibiotics outside of ampicillin and streptomycin...
Pages: 8 (2000 words) , Research Paper
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Transmission of emerging pathogenic bacteria sp from livestock farms in Tabuk, Saudi arabia
The pathogens are from the parasitic “interrogans” group, wile the no pathogens are from the saprophytic “biflexa” group. Uually, Lptospirainterrogans, nt Leptospirabiflexacan be extracted from the patient’s blood, crebrospinal fluid, ad urine. Al the pathogenic leptospires were previously classified as members of the species Leptospirainterrogans,...
Pages: 6 (1500 words) , Thesis Proposal , Medical science
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Article review and summary
Pseudomonas fluorescens population within the rhizoshere is very resistant against the predators that are living in the rhizoshpere and are feeding heavily on these bacteria. This resistance is due to the ability of these bacteria to secrete toxins that are able to inhibit and even...
Pages: 5 (1250 words) , Essay
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Antibacterial Soap: Does Antibacterial Soap Do More Harm than Good
In hospitals, fr instance, ue antibacterial products to clean rooms of patients, eam rooms and other areas. Tese products help to prevent weak patients’ immune system from the exposure of picking up bacteria that lead them to a worse situation. Aother pro of antibacterial cleaning...
Pages: 4 (1000 words) , Research Paper , Biology
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Food Poisoning Causes
Generally, the sorbitol MacConkey agar (SMAC) that was inoculated with a dilution of 10-6 of the suspension produced 200 colonies, and therefore we calculated that had a concentration of 12000 cfu/gram. Since this SMAC agar is also selective we can conclude that these were enterohemorrhagic...
Pages: 8 (2067 words) , Lab Report , Health Sciences & Medicine
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Enumeration and Growth
One of the commonly used methods is the standard plate count which is based on the assumption that each colony arises from a single bacterium. Te number of bacteria is thus determined by counting the number of colonies arising from a culture. Te disadvantage of...
Pages: 8 (2000 words) , Lab Report , Medical science
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Human biology
On attaching to the nonciliated epithelia of the fallopian tube in women, mcrovilli surround and move them to the surface having the mucosal cells. Te microbe then uses the process of parasite-directed endocytosia to enter into the epithelial group of cells. I that process, te...
Pages: 13 (3250 words) , Assignment , Biology
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Concider the global impact of a waterborne infectious disease (which may be caused by a bacterium or parasite) and discuss current methods for detection, treatment and prevention
E. coli O157 is different from other pathogenic E. coli in different ways like , E. coli O157 is sorbitol negative whereas 93 % of the E. coli ferment sorbitol, E. coli O157 does not produce heat stable toxin but some type of E. coli...
Pages: 8 (2000 words) , Essay
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Applications of Other Staining Techniques for Identification Purposes
Special stains technique can be used in highlighting the flagella of bacteria by a coat of dyes or metals around the bacteria, resulting in an increase in the width of the bacteria. The staining will lead to an identification of flagella (Zourob, Elwary & Turner...
Pages: 8 (2000 words) , Research Paper , Health Sciences & Medicine
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Critical Examination of Animals in a Bacterial World Article Authored by Margaret McFall-Ngai
Choanoflagellate and animal protists can be considered as one group based on cellular and molecular data. This is a group that that originated from a similar choanoflagellate ancestor. There are two types of choanoflagellate behaviors that are the key to the animal origin. These behaviors...
Pages: 4 (1166 words) , Assignment , Biology
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Staphylococcus aureus
Diabetes, pople with chronic kidney diseases, pople with cancer therapy, sin burns are more susceptible of getting the Staphylococcus aureus infection. Aditionally, pople with transplanted organs also depict high susceptibility to infections from staphylococcus aureus since they take immune suppressive drugs. Saphylococcus aureus can...
Pages: 6 (1500 words) , Essay , Medical science
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He characterisationand identificationof your unknown bacteriu: s c i e n t i f i cp a p e
The colony morphology is the same for a given micro organisms and 2. Cellular morphology by Gram staining: The bacterial cells are translucent in nature and hence staining of the cells is required for identifying the gram positive and those that take the color...
Pages: 9 (2250 words) , Lab Report
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Basic Bacterial Identification
Discuss any that did not and give possible explanations that might account for this: No, all the observed characteristics did not agree with those in Bergey’s Manual for the given unknown bacteria. The oxidation/fermentation test result did not agree with that mentioned in the Bergey’s...
Pages: 6 (1500 words) , Assignment , Biology
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Bacteriocins and its Impact on Our lives and Agriculture
Focused on colicins from E-coli and the bacteriocins from other gram negative bacteria, te current focus of studies on bacteriocins is on the bacteriocins from the gram positive bacteria, a they are assumed to have more application in humans and in foods and other products...
Pages: 8 (2000 words) , Article , Biology
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Infections and Antibiotic Susceptibilities
Oxidase negative result showed that V1 bacteria could be Staphylococcus, thus differentiating it from Micrococcus (Kloos & Bannerman, 1995). Thus the bacteria V1 could be S.aureus. This bacteria is found to be sensitive to the antibiotics ampicillin, gentamycin, tetracycline, cephalothin and chloramphenicol, thus any of...
Pages: 6 (2143 words) , Lab Report , Biology
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Scientific Lab
Neutral red acts as a pH indicator. Klebsiella pneumoniae bacteria is known to be lactose fermenters hence unknown A while Salmonella Typhimurium bacteria is not lactose fermentor thus unknown B. Te orinithine decarboxylase test is important for Enterobacteriaceae differentiation. M-VP broth for Methyl Red test...
Pages: 4 (1000 words) , Research Paper , Biology
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Factors giving rise to Emerging Pathogens
      In the laboratory, E. coli can be easily cultured on the nutrient agar as well as the Mac Conkey agar and the Eosin Methylene Blue agar. They provide with grey, bright pink and metallic sheen colonies on the agar respectively. The most feasible temperature...
Pages: 14 (3500 words) , Term Paper , Biology
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Differentiation of microorganisms (micro biology)
Of the exoenzymes are hydrolytic enzymes which break down complex substances into simpler molecules, tey are used as identifiers for the bacteria. Aylases hydrolyse the starch, glatinase hydrolyses gelatin and caesinase converts casein into peptides and amino acids. Ctalase converts hydrogen peroxide into oxygen and...
Pages: 5 (1250 words) , Lab Report , Biology
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Computer-aided image processing for bacterial cell enumeration
The tradition plate count technique pauses as an indirect technique and often preferred for its cheap nature. Tchnologies applied for quantification of microbial growth involves: AP Bioluminescence, siral plating, te use of membrane filtration, Drect Epi-Florescent Filter Microscopy and Membrane laser scanning, Fuorescence amongst others....
Pages: 4 (1000 words) , Essay , Biology
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Sushi Digesting Genes Article Review
The observation here is that upon consumption of the sushi, mrine bacteria and algae are swallowed and become resident in the gut of the human body. The digestive system is tasked through genes to tackle the marine meals carbohydrates as well as the algae. There...
Pages: 4 (1000 words) , Article , Journalism & Communication
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Antibiotic sensitivity
Newer non- automated susceptibility tests (Chu, Azah-Shah, Hang, Plepou, &Lyon, 2001), ad the molecular tests (Kirby, Sder, Wlsh, &Jones, 2004). Ech of the listed tests above is applicable in either of the two cases of bacterial resistance. Bcteria exhibit two kinds of resistance to antibiotics;...
Pages: 4 (1000 words) , Lab Report , Medical science
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1. Choose one topic from your philosophy. 2. Discuss this topic in relation to your own field of Nursing and one other field of Nursing
For example, i there is a patient who has been diagnosed or is showing symptoms of a particular infectious disease, ten the prudent medical hygiene procedure that should be followed is isolation. Te medical term used for isolation is quarantine. Hnd hygiene is also pertinent...
Pages: 6 (1500 words) , Essay , Nursing
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Bacteriophages and their current significance in dairy industry
This may be eliminated by effectively heat treating any reprocessed ingredients starter cultures before use. Tmperate phages can integrate into the bacterial chromosome resulting in lysogens, wich may start lytic cycles during fermentation leading to hindered fermentation (Lunde et al. Te adaptive nature of phages...
Pages: 8 (2000 words) , Essay
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1) Describe the physical and chemical requirements for microbial growth and: a. The industrial production of Yogurt. b. The role of microbes in the nitrogen cycle. c. The role of microbes in the spoilage of jam. Everyone does a. and b. and c. 2) P
Yoghurt is a milk product (produced from bacterial fermentation) with at least 8.25% non-fat solids. Te main ingredient in the industrial production of yoghurt is milk, wth the type of milk used dependent on the type of yoghurt intended. Sabilizers such as starch, pctin, gms,...
Pages: 4 (1000 words) , Essay , Biology
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The role of the intestinal microbiota in health and disease
Sekirov et al point that the most microbial colonized part of the human body is “the gastrointestinal track (GIT), were the colon alone is estimated to contain over 70% of all the microbes in the human body. ”(1, p860)Right from birth, a infant’s system comes...
Pages: 8 (2000 words) , Essay , Health Sciences & Medicine
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Research Paper on Staph Infections
(Jackson, 2008) How Do People Get Staph Infections? Most staph infections in teens include minor skin infections. People having skin problems such as eczema or burns are more likely to catch staph skin infections. Staph infections can spread from contaminated objects, however, they often spread through skin-to-skin...
Pages: 6 (1500 words) , Essay
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Features Of The Gram Staining Procedure
The pore size decreases, permeability is reduced and the CV-I complex cannot be extracted. Therefore, these cells remain purple-violet. Alcohol causes the diminution in the diameter of the pores in the cell-wall peptidoglycan (Web. occur most commonly as irregular clusters of spherical cells and Streptococcus...
Pages: 6 (1500 words) , Term Paper , Biology
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Medical Microbiology
Fields of Medical Microbiology Two major fields in medical microbiology are bacteriology and virology. These focus on the diseases, action and treatment of bacteria and viruses respectively. Both bacteriology and virology made large use of assays in the past, which can be biochemical, immunological or culture-based...
Pages: 6 (1500 words) , Essay , Biology
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Are microbes good or bad
Lots of bacteria can be also found in our mouth, sin, gnital organs. Wat is more, agreat number of the cells of human body is not human, tey are bacteria cells. I should be noticed that these cells are not dangerous, tey are rather helpful...
Pages: 7 (1750 words) , Research Paper , Biology
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