Bacteria which stain purple are called Gram-positive while stained pink colour are called gram negative bacteria. From the results‚ purple stained are obtained for E.coli and S.aurues . E.coli is a rod shaped bacteria‚ therefore it described as bacillus. S.aureus has irregular grapelike clusters‚ therefore is it coccus bacteria. Through this experiment‚ purple stained obtained for both bacteria‚ E.coli and S.aureus. But compared to same experiment carried out by others‚ E.coli should be pink stained
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Microorganisms are tiny‚ small living things which can not be seen with eyes. They spread everywhere around the world. Most people think that microorganisms are harmful to the environment. Humans exploit these small living things hundreds of years ago. Science has developed and scientists have established new science related to microorganisms‚ it is called microbiology. In this essay‚ I will talk about one of the oldest and most widespread microorganisms in our planet‚ bacteria. Bacteria lives everywhere
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that cell size had anything to do with the initiation of DNA replication in bacteria. The objectives and hypothesis was clearly stated in the paper. In order to find the answer to their question‚ the researchers used Escherichia coli (E. coli) and Bacillus subtilis (B. subtilis) in their experiment. Both E. coli and B. subtilis are common and well known bacteria that are used in research. They took the E. coli and B. subtilis and placed them in specific media for each step the in process of replication
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STATEMENT OF PURPOSE FOR FOOD SCIENCE The progression of technology and the effects it had on civilization has always fascinated me and generated profound interest in me. My decision to choose Food Science is not an impetuous decision‚ rather it was developed over a time. Since I was a kid I have seen my parents and grandparents using different cooking methods from time to time. My interest in finding the scientific reason behind their cooking practices grew strong as I grew older. Usage of
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E. coli O157H7 What is the morphology and gram reaction of this pathogen (2) E. coli‚ including E. coli O157H7 is a gram-negative bacillus. What do (i) O157 and (ii) H7 attached to the name of this bacterium represent (2). The O157 is the O HYPERLINK http//www.emedicinehealth.com/script/main/art.asparticlekey5469 serotype antigen that identifies the E. coli strain‚ and the H7 represents the antigen type on the HYPERLINK http//www.emedicinehealth.com/script/main/art.asparticlekey2416 bacteriums
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Fleas are very small insects. They are all flightless and do not have eyes‚ although two ocelli may be present. Their antennaes are short and their mouthparts are adapted for piercing and sucking. The female flea lays a few eggs daily that total up to 300 to 400 in its lifetime. The eggs are laid usually on animals and most drop off where they spend most of their time. Bedding‚ floor crevices‚ carpeting‚ along baseboards and areas near their favorite sleeping and napping sites are especially likely
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Trypanosoma Protozon-Trypanosoma is a genus of kinetoplastids (class Kinetoplastida)‚ a monophyletic group of unicellular parasitic flagellate protozoa. E Coli-Escherichia coli is a Gram-negative gammaproteobacteria commonly found in the lower intestine of warm-blooded organisms Staphylococcus -Staphylococcus is a genus of Gram-positive bacteria. Under the microscope‚ they appear round‚ and form in grape-like clusters. The Staphylococcus genus includes at least 40 species. Giardia Protozon-Giardia
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Tetanus is a neuromuscular disease caused by an anaerobic‚ Gram-positive‚ spore-forming bacillus called Clostridium tetani‚ a species of bacteria of the Clostridium genus‚ that produces a powerful neurotoxin called tetanospasmin The most common first symptom of tetanus is spasms or tightening of the jaw muscles referred to as "lockjaw". Other symptoms include headaches‚ sudden muscle spasms-often in the stomach‚ sweating and fever‚ painful muscle stiffness throughout the body‚ difficulty swallowing
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is binomial nomenclature? 4. Who is Carl Linnaeus? 5. What is a dichotomous key? 6. Draw and label the lifecycle of a DNA virus. 7. Distinguish between DNA and RNA viruses. 8. Compare eukaryotic cells and prokaryotic cells. 9. Define coccus‚ bacillus‚ streptococcus‚ and spirillum? 10. What are 3 examples of helpful bacteria? 11. What do bacteria need to grow and reproduce? 12. How do we inhibit growth of bacteria? 13. How do bacteria reproduce (sexual and asexual)? 14. Protists move in
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Identification of Unknown # 15 Abstract. One of the most fundamental differential staining techniques used in the study of bacteriology is gram staining. There are two main types of bacteria‚ gram negative and gram-positive. The purpose of this experiment was to perform a variety of tests to identify the bacteria contained in the unknown sample labeled number 15. The following are the tests that were used to identify the two different bacteria. The
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