CHAPTER ONE INTRODUCTION The industrial attachment is an important part of the course structure of the university. This is the time students appreciate the theoretical work done in the lecture halls when seen practically. This attachment introduces the student to the outside world in terms of working experience and also prepares them for the future. The department of applied biology therefore introduced the industrial attachment program in its learning curriculum to give students a chance to combine
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There are many reasons for identifying an unknown bacterium. The reasons range from medical purposes‚ such as determining if the unknown could cause ailments in living things or knowing what microorganisms are needed to make antibiotics to other purposes such as knowing the exact microorganism has to be used to make certain foods. This experiment was done by applying methods in order to identify an unknown bacterium. An unknown bacterium was handed out by the lab instructor. The methods that
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There are eight types of chemical reactions. These eight reactions are Decomposition‚ Composition‚ Acid/Base‚ Synthesis‚ Single-Replacement‚ Double-Replacement‚ Precipitation‚ and Redox. Though these eight could be referred to as the same due to them being chemical reactions. They are actually very different. An example of this difference is Decomposition and Synthesis. Decomposition is when a compound is broken into smaller chemical species while a Synthesis reaction is two or more chemical species
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fishes would have been quite happy by then‚ but as they grow to full sizes their room in the fish pond is certainly reduced. In addition if your pond uses only an average filter the wastes generated by these mature fishes which include ammonia and nitrite can certainly build up. This can prove fatal to the lives of your fishes. To avert such a situation‚ make sure that you do not overstock your pond with fishes. If you feel that the fishes are too high‚ make sure to transport them to some other
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Introduction: The purpose of this lab is to use staining techniques and biochemical testing to identify an unknown bacteria using Bergey’s manual. Bergey’s manual of Systematic Bacteriology is a dichotomous key primarily used to identify a bacterial species. Biochemical tests are used to differentiate different species of bacteria. These tests are effective in determining the characteristics of the microbe being tested. Such characteristics include citrate utilization‚ gelatin hydrolysis‚ nitrate
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factors Biological structures like peel to inhibit microorganisms‚ pH‚ moisture content‚ RedOx potential‚ nutrient content‚ antimicrobial constituents‚ presence of other microorganisms‚ Examples of extrinsic factors Low pH‚ low temperature‚ addition of nitrites‚ casing and packaging to inhibit microbial growth. : http://www.leadership-central.com/types-of-motivation.html#ixzz4XrtSpRVa . Teratogens: Any mediator that can disturb the development of an embryo or fetus. Teratogens may cause a birth defect
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The thermal decomposition of nitrates – ‘writing with fire’ 31 A message is written on filter paper with a solution of sodium nitrate and is then dried‚ rendering it invisible. Applying a glowing splint to the start of the message makes the treated paper smoulder and the message is revealed as the glow spreads its way through the treated paper. Lesson organisation The demonstration takes about 10 -15 minutes. It could be a student activity‚ but with a large class it will need a well
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CHAPTER I INTRODUCTION 1.1 Background Food is one of human sources of calorie‚ protein‚ fats‚ and nutrition. Yet‚ because of the highly nutritious content‚ food is susceptible to growth of microorganisms. By the presence of microorganisms in food‚ the food is more likely to have shorter shelf life. Thus‚ mostly it is resolved by the addition of antimicrobial substances to food‚ such as condiments and preservatives. Condiments and preservatives could inhibit the growth of microorganisms
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COMM 225: MIDTERM REVIEW QUESTIONS TOPIC: PROJECT MANAGEMENT Q 1.1: Kozar International‚ Inc. begun marketing a new instant-developing film project. The estimates of R&D activity time (weeks) for Kozar’s project are given in the table below. The project has two paths: AC-E-F and A-B-D-F. Assume the activity times are independent. a) What is the probability that the project will be completed between 35 and 45 days? b) If the time to complete the path A-B-D-F is normally distributed‚ what is the probability
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