Chapter 25: Environmental Microbiology Question Type: Multiple Choice 1) Which would not be the habitat for terrestrial species of some microorganisms? a) desert b) tundra c) tropical rain forest d) freshwater lake Answer: d Difficulty: Easy Learning Objective 1: LO 25.1 Explain the concept of ecosystems and how energy flows through them. Section Reference 1: Section 25.1 Fundamentals of Ecology 2. Microbes in the environment can be _____. a) producers b) consumers c) decomposers d) all
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● For the organism staphylococcus aureus‚ aureus represent the species level of classification ● Genus is represented by staphylococcus ● Designing organisms in the industrial setting that can provide human products through genetic engineering or clean up environment waste through bioremediation is part of the sub discipline microbiology referred to as biotechnology ● A pathogen is the term used to refer to any disease causing microorganism ● The term ubiquitous is used to refer to the fact that microbes exists nearly
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A review of Guava (Psidium guajava) Anthony C. Dweck FLS FRSC FRSH Dweck Data Introduction In the next of our series on Far Eastern plant we look at Guava or Psidium guajava In folk medicine‚ extracts of roots‚ bark‚ and leaves are used to treat gastroenteritis‚ vomiting‚ diarrhoea‚ dysentery‚ wounds‚ ulcers‚ toothache‚ coughs‚ sore throat‚ inflamed gums‚ and a number of other conditions (Morton 1987). This plant seemed worthy of an in depth review. Family: Myrtaceae Common names: Common
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This syndrome is considered to be an acute and life-threatening condition with the death rate being for Staphylococcus aureus five to fifteen percent‚ but for Streptococcus pyogenes it increases to a thirty to seventy percent mortality rate (Hirsch‚ 2014). Staphylococcus infections is a form of Toxic Shock Syndrome (TSS) that is caused by the microorganism called Staphylococcus aureus that may be present in the person’s body‚ but never cause infection simply because it is featured in the body’s
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Use of Enzymes in Food Industry - Food industry utilizes a variety of enzymes for processing of various foods‚ e.g.‚ production of various types of syrups from starch or sucrose (a- and β- amylases‚ glucamylase‚ pullulanase‚ invertase‚ and glucose isomerase)‚ meat/protein processing using proteases‚ removal of glucose and or molecular oxygen (O2) using glucose oxidase and catalase‚ use of lactase in dairy industry and use of enzymes in fruit juice and brewing industries. Glucose oxides are obtained
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In as much as medical research has made substantial progress in recognizable disease today‚ there remains a plethora of diseases needed advanced research. Numerous diseases that were once an imminent death sentence have made outstanding medical advances. Cystic fibrosis (CF) is a genetic disorder that decreases the effectiveness of the lungs due to a mucous buildup. In the late twentieth century patients with CF could only to expect to live a few years but since 2006‚ life expectancy has risen to
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peroxidation inhibition & ABTS•+ scavenging assay. Madurai sample had highest superoxide and ABTS•+ scavenging potential‚ wheras maximum LPO inhibition was observed in Pune. Extracts showed antimicrobial activities against two gram +ve (B. cereus‚ S. auerus) aaaaand five gram –ve bacteria (S typhi‚ S. flexneri‚ S. sonnei‚ P. aurginosa and E. coli). Madurai sample had maximum antimicrobial activity against these microorganisms. RAPD profile showed a total 1020 bands scoring 250 RAPD marker bands with
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a. Calcium 12. Mucoid‚ pink colonies on plate; produces gas; indole (+). On TSI tube you see yellow on the slant and yellow in the deep. What organism is this? b. E. coli 13. PAD (+); indole (+); organism stains gram negative. What is it? a. P. vulgaris 14. You see a curved gram negative bacilli. It was cultured from the GI tract of a person with ulcers. What test would you do next to
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Agar and Media Preparation— Agar plates containing King’s B Agar were often used throughout the experiment to support growth of Pseduomonas fluorescens. A recipe was used that included a mixture of 10g Proteose Peptone #3‚ 1.5g Potassium Phosphate Dibasic (K2HPO4)‚ 30ml 50% Glycerol‚ ~965ml water and 20g agar. The mixture‚ post- autoclave‚ was left to cool and 5ml 1M Magnesium Sulfate (MgSO4) was added and created about 40 plates. King’s B Medium was made using the same procedure as the King’s B
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microorganisms are able to resist the effects of an antibiotic to which they were once sensitive. Antibiotic resistance comes from the overuse of antibiotics. 4. Identify a species of bacteria that has become resistant to antibiotics Staphylococcus aureus 5. Describe the change that occurred within the species. Aminoglycoside antibiotics were once effective against staphylococcal infections‚ and now are not. 6. Describe the change in the environment that occurred. “Strains evolved
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