Microbes are everywhere. Objectives: The experiment performed in the Lab was isolation of microbes taken from us and the environment. We used Nutrient Agar which is a growth medium used to culture microorganisms or small plants and Sabourand Dextrose Agar plates used to cultivate moulds and yeasts. The objective of it was to demonstrate that microbes are everywhere. We expected to find a variety of bacteria‚ moulds and yeasts. We were introduced to aseptic techniques as they help ensure that
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a colony count. Sterile cotton swabs were used to sample the classroom telephone‚ light switch‚ cell phone‚ and a student’s tongue. After carefully swabbing each site‚ we inoculated separate Petri dishes and a test tube of nutrient broth. A blood agar plate was exposed to bacteria by coughing on it. The plates were then incubated at 37ºC for 48 hours. The light switch and telephone were contaminated with both bacteria and mold which produced turbid tubes of broth. However‚ the sampling of the
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generating diversity in life and aiding in evolution. Materials and Methods The materials used in the lab were two agar petri plates‚ a permanent marker‚ labeling tape‚ sterile scalpel‚ compound microscope‚ toothpick‚ microscope slide‚ water‚ cover slip‚ and the ascospore Sordaria cultures‚ which included wildtype (dark)‚ tan‚ and grey (mutant) fungi. First‚ collect two agar plates to make the cross between the three different colored ascospores. The Sordaria should be crossed in the following
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Petri dish- This is used to transfer the agar cubes as you should put the cubes in there as some of the chemicals can be dangerous Safety goggles- These are essential to keep your eyes protected from harmful chemicals White tile- To help to see the colour change Stop clock- To time how long it takes for the cube to change colour. Method 1-Stop the clock and quickly but carefully place one of the agar cubes into the specimen tube containing 3.7g/100cm3 of hydrochloric acid
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s Disease can be divided in two main groups infections and non-infections. Infectious diseases are diseases that can be spread or transmitted from one organism to another. Non – infectious diseases cannot‚ be spread from one person to another. Infectious Diseases Infectious diseases are generally caused by microbes known as pathogens. Pathogens invade the host and can cause changes in the body that stop parts‚ or all‚ of the body working correctly. Pathogens contain antigens that are made of
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throughout testing period‚ with stains‚ dishes‚ agars‚ and test reagents readily available. Lab procedures are considered orthodox and usage thereof is noted chronologically. 3/15/05 We obtained a 24 hour old stock broth culture of the unknown specimen 16. It appeared turbid‚ reflecting a substantial amount of growth. To determine that the stock culture was pure‚ we performed a streak plate using loops of the stock broth on a fresh dish of nutrient agar and then incubated it for 48 hours at Standard
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Nilai-Nilai Kementerian Keuangan Oleh: Aprian Hermanto Dalam kehidupan manusia pasti terdapar pandangan terhadap nilai-nilai. Nilai menunjukkan keberhasilan terhadap perilaku seseorang. Dictionary of Sociology and Related Science mendefinisikan nilai sebagai kemampuan yang dipercayai‚ yang ada pada suatu benda untuk memuaskan manusia. Nilai tersebut diimplementasikan dalam kehidupan manusia. Harga barang memberikan nilai dari suatu barang. Kecantikan memberikan nilai terhadap seseorang. Kepintaran
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forms of cocaine. Crack cocaine get its name from the cracking sound it makes during the process of smoking the ‘rock’. This process of transforming cocaine makes crack cocaine one of the most highly addictive drug available on the streets today (Agar‚ 2003). Cocaine is usually snorted through the nostrils and the effects‚ or high‚ will begin within 8-10 minutes of ingestion; however crack can be smoked from a pipe or free based out of a spoon‚ and a user can receive effects from the drug immediately
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The Effect of Srb-16 and F35B1.3 RNAi Gene Treatment on Chemosensation in Caenorhabditis elegans through Observation of Chemotaxis. Abstract: The study of sensory systems in humans is a vital area of study to further pursue our knowledge of the mechanisms occurring in the nervous systems. However due to the complications surrounding human testing‚ model organisms such as C. elegans worms can be utilized as a comparison to create paradigms relevant to human sensory systems as the genetic basis
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were repeated with a sample with healthy tissue. • These solutions were then poured into separate wells o a sodium polypectate solution agar plate along with two controls of PG and boiled PG. • This was left for incubation at 37C for 24 hours. • The plates were then flooded with 2m HCL to precipitate any sodium polypectate out of solution. • The agar plate was examined against a dark surface to measure any zones of clearance around cell wall. Sometimes known as Brown Rot‚ Monilinia
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