for microscopic images of yogurt. D. Are there observable differences between fresh yogurt under the microscope and the prepared yogurt slide? If so‚ briefly describe them. There is an observable difference. The fresh yogurt slide has less bacterial growth than the
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Sizes and types of fragment in Figure 1. Discussion: Plasmid can carry one or more antibiotic resistance gene which makes the bacteria resistance to specific antibiotic. The reason ampicillin was added to LB medium during preparation of bacterial culture is to make sure that the E.coli plasmid produce ampicillin resistance gene. This will makes the plasmid which contains desired gene more easily to be isolated from self-ligated plasmid. The bacteria plasmid DNA that being extracted is from
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simple stains. Crystal violet and Carbol fuchsine‚ simple staining components‚ were used to stain the slide in order to see the different microbes in order to determine their cellular shape and identify unknown ones by comparing. Introduction Bacterial cells are usually colorless because cytoplasm‚ for the most part‚ is transparent. Since the bacteria are colorless‚ it is almost essential to add a stain to make the bacteria more visible. Once stained‚ cell morphology can be observed. Stains are
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of the fluid and membranes that cover the brain and spinal cord‚ known as the meninges. The inflammation is usually caused by an infection of the fluid surrounding the brain or spinal cord. There are three main types of the meningitis infection: bacterial (both infectious and non-infectious)‚ viral‚ and fungal/environmental (including parasitic). Meningitis may develop in response to a number of causes‚ usually bacteria or viruses‚ but can also be caused by physical injury‚ cancer or certain drugs
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You Will Be Learning 3.1 How Penicillin Was Discovered 3.2 Cell Theory: All Living Things Are Made of Cells 3.3 Membranes: All Cells Have Them 3.4 Prokaryotic and Eukaryotic Cells Have Different Structures 3.5 Some Antibiotics Target Bacterial Cell Walls 3.6 Some Antibiotics Inhibit Prokaryotic Ribosomes 3.7 Molecules Move across the Cell Membrane 3.8 Eukaryotic Cells Have Organelles UP CLOSE Eukaryotic Organelles 39 3620001C03.indd 39 1/27/11 10:14 AM Chapter 3 Cell
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Variable: Sterile Filter Paper III. Hypothesis: If the most effective solution for pathogenic bacteria is household bleach‚ then the descending order from best to least are household bleach‚ Penicillin‚ Amoxicillin‚ Household Disinfectant‚ Anti-Bacterial Soap‚ Erthromycin‚ Sterile Filter Paper. IV. Materials: A. The materials used in this lab include a agar‚ a petri dish‚ test tubes containing the pathogenic bacteria: Straphylococcus aureus‚ Hemophilus influenzae‚ Streptococcus‚ and antimicrobial
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since the effect of moist heat treatment on bacterial spores wasbeing investigated‚ the spores from Bacillus stearothermophilus was used. Using the three testtubes with spores‚ the first one (1) was autoclaved‚ the second (2) was boiled‚ and third (3)received no treatment. The fourth test tube (4) didn’t have a spore strip and served as a controlfor the effectiveness of the aseptic pipetting technique. As hypothesized‚ test tubes 1 and 4experienced no bacterial growth. Because tube 4 had no spore strips
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antibiotics is one of the many health issues to be explored in this essay. Bacteriophages are viruses that specifically target bacteria in your body to destroy it. Many scientists believe that bacteriophages will replace antibiotics in the fight against bacterial/diseases‚ although ideal‚ scientist do not know the long term effects of using this mechanism of defense. More research is needed and thus the push for bacteriophage usage may be reluctant in the field of medicine. There are many articles that support
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genetic material in the bacterial cell. Then‚ using the bacterial machinery‚ the DNA multiplies itself. Eventually from this multiplied genetic information so many new bacteriophages are formed that the cell bursts. The offspring of the bacteriophage has destroyed its bacterial host‚ and in so doing millions of new bacteriophages are released. These can attach themselves to new bacteria to complete their life cycle. With our immune system we defend ourselves against a bacterial infection. Antibiotics
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rRNAs‚ r-proteins‚ major elongation factors‚ various amino acid-charging enzymes and tRNAs‚ etc. are generally common to both Bacteria and Archaea. Further‚ the r-proteins in Archaea are also arranged in operons similar to that seen in Bacteria (Bacterial‚ 2006). However‚ apart from these differences‚ Archaea are extensively similar to Bacteria. Most of the metabolic pathways‚ which comprise the vast majority of any organism’s gene repertoire‚ are common between Archaea and Bacteria. In terms of
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