What are probiotics? Probiotics are bacteria that help maintain the natural balance of organisms (microflora) in the intestines. An estimated 100 trillion microorganisms representing more than 500 different species inhabit every normal‚ healthy bowel. These microorganisms generally don’t make us sick; most are helpful. Gut-dwelling bacteria keep pathogens in check‚ aid digestion and nutrient absorption‚ and contribute to immune function. Probiotic therapies suggest that certain probiotics may help
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classification of bacteria is important to make easier manipulation on the bacteria for various purposes such as for medical‚ research‚ developmental‚ and biotechnicalfieldsThe cell wall is the basis for classification of bacteria according to the Gram stain. Accordingto the chemical make up of bacterial cell wall‚ a staining procedure‚ Gram stain‚ helps usclassify bacteria into two subgroups‚ The cell wall can stain either positive or negative‚depending on its chemistry. If the bacteria stains positive
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University Biology 1510 Professor A. Hirons March 28‚ 2011 Abstract Antibiotic resistance is when microorganisms‚ such as bacteria‚ are able to survive an exposure to antibiotics and these bacteria are now resistant to the effects of these antibiotics. Antibiotic resistance in bacteria has been an issue since antibiotics were discovered. The fact that bacteria can become resistant to our medical treatments such as antibiotics is a natural evolutionary process‚ but there are certain human
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Bacteria are unicellular and ultra-microscopic organisms‚ yet they play an important role in nature. They are of tremendous importance to man. They play an important role in agriculture and medicine and are the basis of many industries. Some are beneficial to man directly or indirectly‚ others are very harmful as they cause various plant and animal diseases. Bacteria are considered as our friends and foes due to their beneficial and harmful activities. Their economic importance can be studied under
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LAB Report #3 Introduction: In this lab we have focus on Isolation of bacteria from environment. Microorganisms are found throughout the environment: in the air and water; on the surface of any object such as clothes‚ walls‚ furniture; in soil and dust; and on and in our own bodies (skin and mucous membranes). In order to demonstrate the ubiquity and diversity of microbes in the environment‚ samples from immediate areas of the environment and/or from your body will be obtained and cultured
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Methanolic Extract of Eggplant (Solanum melogena) Peel as a Dye Pigment in Differential Stains Azucena‚ Alexis G. An Official Entry to 2010 Regional Science Fair Cluster 2 Physical Science- Individual Negros Occidental National Science High School January 13‚ 2011 Ma. Melanie P. Romero Research IIB Adviser APPROVAL SHEET The research paper attached hereto‚ entitled‚ “Methanolic Extract of Eggplant (Solanum melogena) Peel as a Dye Pigment in Differential Stains”‚ prepared and submitted
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decided to do a project that revolves around bacteria. I was suggested to do a project where I get a petri dish containing my oral bacteria and see the effects of liquid on my oral bacteria. I was very curious about this topic and wanted to know how the bacteria grows so I gave it a shot. For my project‚ I was told to make an “if and then” hypothesis. My hypothesis was that “If I put orange juice on a petri dish containing my oral bacteria then the bacteria on the petri dish will multiply.” For this
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1.4.1. Safety Aspects of Probiotics Today‚ there are evidences that probiotic strains used as commercial bacteria are safe to use in applications. The safety of the probiotic products is appraised with the phenotypic and genotypic characteristics and the statistics of used microorganisms (Çakır 2003). Safety aspects of probiotic bacteria include the following requirements. 1. Strains for human use are preferred to be human origin. 2. They are isolated from healthy human gastrointestinal tract. 3
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Bacteria have to developed a variety of mechanisms that allow them to enter the cells of their host‚ whether to replicate or to transmit the pathogen. One method of this is through pili. Pili are thin rods anchored to the outer membrane of bacteria with an adhesin at the tip. This adhesin is what gives the bacteria their binding specificity. Pili can serve a variety of roles such as‚ adhesion or the transfer of material during bacterial conjugation. Fimbria are a type of pili that are solely for
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after the fusion of two haploid or 1N prokaryotic cells. Others propose that the domains Archaea and Eukarya emerged from a common archaeal-eukaryotic ancestor that itself emerged from a member of the domain Bacteria. Some of the evidence behind this hypothesis is based on a "superphylum" of bacteria called PVC‚ members of which
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