microscopic ● They are also called bacteria group ● They have cell wall that are made of peptidoglycan ● They have varied shapes ● Basic Shapes of Bacteria ● 1.) Cocci ● They are differently arranged ● They can form pairs (diplococcus)‚ chains (streptococcus)‚ or clusters (staphylococcus) ● They are spherical in shape 2.) Bacilli ● They can also occur in chains (streptobacillus) ● They are spherical in shape 3.) Spirilla ● They are spiral in shape Bioremediation ● “Oil-eating bacteria” ● Scientists
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grown drastically to over 10 in the 2000’s. The studies from “You Decide: What Can We Do About Antibiotic-Resistance Bacteria”‚ show how antibiotics affect bacteria over time. From 1995 to 1998 the resistance of penicillin by the bacteria known as Streptococcus Pneumoniae increased consistently. If patients continue to become resistant to the antibiotics being prescribed then the antibiotics could become extinct in the sense that they would no longer be valuable for their intended purpose. According to
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Pneumonia accounts for 13% of all infectious illnesses in infants younger than 2 years. Newborns with pneumonia commonly present with poor feeding and irritability‚ as well as tachypnea‚ retractions‚ grunting‚ and hypoxemia. Infections with group B Streptococcus‚ Listeria monocytogenes‚ or gram-negative rods (eg‚ Escherichia coli‚ Klebsiella pneumoniae) are common causes of bacterial pneumonia. Group B streptococci infections are most often transmitted to the fetus in utero. The most commonly isolated
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1. Microbiology ⁃ M microscope ⁃ I independent unit ⁃ C comparatively less complex ⁃ R rapid rate of reproduction ⁃ O omnipresent ⁃ humans are living repositories of bacteria/microbes ⁃ borne sterile ⁃ microbe on all surface area of the body ⁃ sterile areas: eyes‚ brain‚ spinal cord‚ bones‚ kidney‚ internal organs ⁃ mutualistic relationship: we provide site and nutrient and microbes provide vitamin‚ aid in food digestion ⁃ division of microbial world ⁃ living component: organism
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Study Questions: Chapter 28 1.) Archaea and Bacteria are the oldest‚ structurally simplest and most abundant forms of life. 2.) Name and describe seven ways in which prokaryotes differ substantially from eukaryotes? Unicellularity- fundamentally single-celled Cell Size- can vary (large range changes with species) Nucleoid- lack a membrane-bound nucleus but rather a nucleoid region Cell Division/Genetic Recombination- binary fission (does not use spindle) and do not have a sexual cycle Internal
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wound case study 1. What condition did this patient have? She had a Group A Streptococcal infection- to be more specific since the bacteria was a gram positive cocci that grows in chains it was caused by Streptococcus pyogenes. The symptoms she had that matched were discolored skin‚ swelling‚ hot sensation‚ and pain. With group a streptococcal infection amputation may sometimes be needed. It was a flesh eating disease called Necrotizing fasciitis. 2.What features suggest that it is not Clostridium
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El Camino College Compton Educational Center Summer 2010 General microbiology lecture part review questions for final exam Adapted by Dr. Eyob Wallano 1. Which is mismatched? A. parasitism – one organism benefits and the other receives no benefit B. competition – one organism gives off substances that inhibit or kill other organisms C. predator – seeks out and ingests live prey D. scavengers – feed on live to dead cells and wastes E. omnivores – feed on plants and flesh 2. The conversion of
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and other living systems and are capable of inhibiting the growth of or killing bacteria and other micro-organisms. Before the discovery of antibiotics‚ nothing much could be done by anybody and deaths on large scale were claimed. For instance Streptococcus pyogenes was the cause of half of all post-birth deaths[2] and Staphylococcus aureus was fatal in 80% of infected wounds and the tuberculosis and pneumonia bacteria were famous killers. Now‚ discovery of antibiotics has enabled the medical line
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MICROBES AND FOOD – A ‘RELATIONSHIP’ Microbes and food have always had a love-hate relationship. Food producers have learned to harness their power -- and sometimes for good use. There is no doubt that organically grown fruits and vegetables are superior in flavor. Now‚ despite arguments to the contrary made by food manufacturers‚ they may well be more nutritious for a variety of reasons. There are always studies available to prove any point‚ especially one
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Introduction:The objective throughout the gram staining experiment was to classify bacteria through their chemical nature as well as the physical structure of their cell walls. Through this experiment one would be able to observe either a thick or thin layer of peptidoglycan by the appearance of the bacteria staining either gram-positive blue-purple or gram-negative pink. Question: Is there a subsequent effect of the bacteria when decolorizing with alcohol? Hypothesis: If there is either a removal
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