Lab: The Bacteria Around You James Brunet Ms Owen October 14th‚ 2012 Part 1 Purpose To culture and observe the various types of bacteria found around Canterbury High School. Materials and Methods Refer to pages 422-425 of Biology 11 McGraw-Hill Ryerson and the handout “Gram Staining Procedure”. Observations Table 1: Locations of Bacteria Samples Quadrant | Location of Sample Obtained | 1 | Floor | 2 | Water fountain head | 3 | Auditorium Chair | 4 | Inside of Boys’ Bathroom
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Gather information on the features of you local water supply in terms of: The Catchment Area: Sydney’s water supply is made of 5 main catchments: Warragamba‚ Woronara‚ Hawkesbury Nepean‚ Shoalhaven and Blue Mountains. Warragamba Catchment covers 9‚051km². My local area is Blacktown‚ in an image shown below; all the catchment areas are linked to Warragamba Catchment Area. Possible Sources of Contamination: Water quality in Warragamba catchment is affected by: * Wastes and runoff from
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Prokaryotes: Bacteria Most of us have been conditioned to think of bacteria as invisible‚ potentially harmful little creatures. Actually‚ relatively few species of bacteria cause disease in humans‚ animals‚ plants‚ or any other organisms. In fact‚ all organisms made up of eukaryotic cells probably evolved from bacteria-like organisms‚ which were some of the earliest forms of life. In this chapter‚ we will learn how bacterial groups are differentiated from each other and how important bacteria are in
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allowed entry of air‚ and yet excluded ________. | | oxygen | | | nutrients | | | airborne bacteria | | | broth | | | heat | Question 4 | | 1 / 1 point | Pasteurization was first developed to kill ________ in wine. | | endospore-producing bacteria | | | all bacteria | | | disease-causing bacteria | | | antibiotic-producing bacteria | | | spoilage bacteria | Question 5 | | 1 / 1 point | Robert Koch’s studies on Bacillus anthracis established a sequence
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ISU Short Stories We Can remember it for you Wholesale “We Can remember it for you Wholesale”‚ is a story focused around a man named Douglas Quail. Quail is a store clerk who has dreams of visiting the red planet. To aid in his dream he visits a company called REKAL‚ a company that sells a sort of virtual holiday to its customers. However‚ upon implantation of the “trip to Mars”‚ it is discovered that his new virtual trip and some very real memories of Mars begin to collide. It is here that
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immense pressure. Both internally due to an increase in resistance‚ as well externally due to an intensification of international pressure through sanctions and various campaigns. In order to combat this‚ the government introduced a policy of “Total Onslaught - Total Strategy.” This policy introduced a number of reforms in the hope of winning the support of non-white South African’s in an attempt to undermine the ANC and other resistance groups. One of these reforms included the creation of the Tricameral
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Introduction There are both virulent and non-virulent bacteria and fungi that grow on plants. It is difficult to distinguish between the two without proper inspection and diagnosis of the diseased plant to know whether the bacteria or the fungus in question is the virulent or non-virulent one. Therefore pure cultures need to be isolated to know with absolute certainty which is the causative bacteria or fungus. Potato dextrose agar is a good nutrient agar for mycelia to thrive on which is present
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Introduction The purpose of this experiment is to see how much bacteria can and will grow in common places in a typical high school. Common places can mean many things‚ including anything from water fountain spouts to computer keyboards. Such objects can hold up to 2‚700‚000 colony forming units per square inch (or CFU/in sq)(NSF). A colony forming unit is the unit used to find an estimate of the number of cells of a bacteria. This unit of measurement is commonly utilized in the subject of microbiology
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this experiment which are the brand of dishwashing detergent; Palmolive‚ Morning Fresh and Ultra Coles Brand and the type of bacteria used which are; Micrococcus Luteus and an unknown bacteria from a sponge. Dependent Variable The dependent variable is the factor that is being tested which is the size of the zone of inhibition from the detergent solution and the bacteria. It will be measured in millimetres using a ruler. Constant Variables Constant Variables are set in place in order to produce
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Instructor Mark Schmidt Surface Water Supply/Treatment March 14‚ 2013 Disinfection The main objective for the disinfection process raw water undergoes in our treatment facilities‚ rather the only purpose for disinfection is to kill any and all remaining viruses and harmful pathogens that would otherwise threaten the safety of those to consume it. Even after the turbidity has been reduced down to very nearly an ntu level of zero and the water is aesthetically sound in appearance
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