positive microorganisms. Materials: Microscope‚ Bunsen burner‚ glass slide pipette‚ loop‚ distilled water‚ nutrient agar of Escherichia coli‚ nutrient agar of Staphylococcus aureus‚ crystal violet‚ gram iodine‚ ethanol‚ safranine‚ oil immersion‚ a piece of napkin ‚ holder. Method: As per manual. Bacteria stained- Escherichia coli and Staphylococcus aureus. Results: Gram-negative bacteria are bacteria that do not retain
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There are various infective agents being battled every single day. These pathogens continue to grow‚ multiply and evolve as humans also continue to find a way to avert their emergence and contend against their harmful effects. One of them is Staphylococcus aureus. “Staph”‚ as it is more commonly known‚ is one of the most common causes for skin infection. They are Gram- positive bacteria‚ spherical in shape and occur in grape-like clusters. These organisms are resistant to high temperatures (as
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diarrhea. Staphylococcus is a genus of the Gram-positive bacteria which appears as grape-like clusters structure when observed under the microscope. Staphylococcus genus can be grouped into not less than 40 species‚ where nine of them consist of 2 subspecies and one gas three subspecies. Staphylococcus was first found in the year if 1880 by surgeon A.Ogston during a surgical abscess in a knee joint. Until this day‚ average estimation of 20% of the human population are carriers of Staphylococcus aureus
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microbes: Enterococcus faecalis (Streptococcus)‚ Streptococcus lactis (Lactococcus)‚ Streptococcus mutans‚ Streptococcus pneumoniae‚ Micrococcus (Kocuria) roseus‚ Sarcina lutea (Micrococcus luteus)‚ Sporosarcina ureae‚ Staphylococcus aureus‚ Staphylococcus epidermidis‚ Staphylococcus saprophyticus‚ Rhodococcus rhodochorous. Procedure: A gram stain was performed to identify if unknown 6O is a gram positive or gram negative and determine its shape. The gram stain was performed as stated
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Answer Questions Write a 125- to 150-word response to each of the following questions: Staphylococcus What is the infectious agent (pathogen) that causes this infectious disease? For example‚ the name of the bacteria‚ virus‚ or parasite. A) Staphylococcus aureus bacteria‚ also called “staph”‚ cause the infectious agent (pathogen) MRSA. MRSA or “mercer” stands for methicillin-resistant Staphylococcus aureus. This strain of staph is resistant to most antibiotics and can be fatal. MRSA Staph
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effect of common household spices/herbs such as cinnamon‚ cloves‚ mustard‚ ginger‚ and garlic‚ on the zone of inhibition in the Staphylococcus epidermis covered nutrient agar? Hypothesis: If 3 teaspoons of chopped cinnamon‚ cloves‚ mustard‚ ginger‚ and garlic steep in half a cup of boiling water for 15 hours and then placed in nutrient agar covered with Staphylococcus epidermis (gram positive) bacteria for 24 hours (in an incubator)‚ garlic will have the strongest antimicrobial effect. This is because
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Mobility (SIM) Test‚ the Nitrate Reduction Test‚ the Protein Hydrolysis Test‚ the Catalase Test‚ and the Cytochrome Oxidase Test. The microbes that were tested during this lab were: Escherichia coli‚ Bacillus cereus‚ the unknown‚ Proteus vulgaris‚ Staphylococcus epidermis‚ Enterobacter aerogenes‚ the control‚ and Pseudomonas fluorescens. The microbes tested during these various tests were looking for which would: reduce sulfur/produce sulfate‚ produce indole‚ or possess motility‚ reduce nitrate‚ and
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the bacteria in a sample of the infected material. Thoroughly washing the hands can help prevent spread of infection. Antibiotics are chosen based on whether they are likely to be effective against the strain causing the infection. Staphylococcus aureus is present in the nose (usually
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has helped saved the lives of millions. Antibiotics are powerful medicines that fight bacterial infections. Used properly‚ antibiotics save lives. However as antibiotic resistance increases‚ the rise of super bugs such as Methicillin Resistant Staphylococcus aureus becomes more apparent. That is why it is important to carefully follow the instructions given to you when prescribed antibiotics. The feature of this article will be antibiotics as well as Antibiotic resistance. The article will also talk
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Introduction: Being able to identify a particular bacterial species is important. It is very useful in knowing its risk of toxicity to humans or animals‚ its resistance or susceptibility to antibiotics‚ and determining how to control its growth or kill it altogether. The purpose of these procedures is to discovery the identity of an unknown microbe by observing its reactions to a barrage of chemical and physical tests. Different microorganisms react in different ways‚ due to their function‚ digestibility
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