Bacterial Diversity Project John FreesackSection A24 Kim Daffer‚ John Chang September 23‚ 2012 Introduction: Bacteria are everywhere. Some can be seen with the naked eye and some require a microscope but how do we distinguish one kind of bacteria from another? To answer this question‚ we were required to complete three bacterial labs that helped us to understand what microorganisms are and how to identify and classify them. Thus‚ the main purpose of this project is to identify our unknown microorganisms
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Introduction Guava is a tropical fruit‚ which is in very much like the shape of a pear‚ and has a yellow-green skin and white‚ yellow‚ or red/pink flesh. The guava tree belongs to the myrtle family Myrtaceae. The tree is natihve to Mexico‚ as well as Central America‚ Northern South America and parts of the Carribbean. They are now cultivated throughout the tropics. The fruit is known by many names in various countries. They are called Pera in Sri Lanka‚ Amrood in Hindi and Urdu. In Bengali
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Unable to read the Gram Stain at first it was later confirmed that Unknown #7 was a gram negative bacteria. When introduced to Starch Unknown #7 produced no zone of clearing showing that it did not contain the enzyme amylase. When introduced to the Lipid Unknown #7 did produce a zone of clearing indicating that it did contain the enzyme lipase. When introduced to Casein Unknown #7 produced no zone of clearing indicating that it did not contain the enzyme protease. When streaked onto the Gelatin‚
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There are several different medical reasons for identifying microorganisms. The reasons may vary from having to know the causative agent of a disease in a patient to be able to treat and care for them properly‚ to knowing the correct microorganism to be used for making certain antibiotics as well as proper dosages‚ down to knowing all microbes associated with consumed foods such as plants and animals in case of an allergen or a contamination outbreak. This analysis was done by utilizing all of
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Reasons For Using Maple Syrup As A Natural Cancer Fighter Pure maple syrup is a delicious sign of spring. Apart from that‚ it is also used as a healthy alternative to artificial sweetener and sugar. It is completely natural and naturally contains a lot of nutrients. The product is filled with a wide range of nutrients and vitamins and can submit for sugar in many different food items. The goodness of the pure maple syrup contains essential nutrients and vitamins. Most important vitamins and nutrients
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If pH > pI‚ then the protein will have a negative charge and if pH < pI‚ the protein will have a positive charge. Buffer I has a pH >5‚ meaning both proteins carry a negative charge and bind to the DEAE (a positively charged resin). (b) pH = pKa + log10(Base/Acid) [Base = mM of sodium acetate; Acid = mM of acetic acid] = 4.7 + log10 (40/40) = 4.7 In order for the catalase to elute from the column‚ it must have lost its negative charge and stopped binding to the DEAE. Lowering the pH
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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 from A. Niger and Penicillium. It is a highly specific enzyme‚ which catalyzes the formation of gluconic acid from β - D- glucose in two separate steps‚ the second step being nonenzymatic spontaneous hydrolysis. Glucose oxidase is used for the removal of glucose or oxygen from the food stuffs
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CHAPTER 4 RESULTS AND DISCUSSION 4.1 Percentage yield Fresh leaves of C. nardus with 1 kg portion yielded about 22.57g of aqueous crude extract‚ which was approximately about 2.26% of yield. The result showed that fresh leaves had a higher percentage yield compared to the air-dried leaves‚ it was only 1.3% yield which conducted by Koba et al. (2009) with the similar extraction technique. There were other factors that might affect the percentage yield‚ such as influence of the harvest place
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Introduction: Biological organisms are classified uniformly in order to easily categorize and identify organisms. This classification‚ or taxonomy‚ uses the genus name followed by the species name‚ in Latin. By having a universal method of identifying bacteria allows for all scientists from any part of the world to identify the same species in an identical manner allowing for a precise of classification. Bacteria are distributed throughout the world in almost every conceivable habit. Bacteria are
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need for Sleep *In case of overdose lead to convulsion and death. Mode of Action * Block neurotransmitters reuptake: Cocaine * Promote neurotransmitters release : Amphetamine * Block Metabolism - MAO inhibitors (monoamine oxidase):ex. Phenelzine * Antagonize the effect of inhibitory neurotransmitter: Picrotoxin & Strychnine Classification of CNS Stimulants * Analeptic Stimulants * Respiratory Stimulants * Convulsants * Methylxanthines
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