growth curve

Measurement of Growth Name : LEVENT Surname : DEMiRAY Student ID# : 140104012 division : molecular BIOLOGY AND GENETICS Date of Experiment : 27.02.2008 arise In the first science testing groundoratory section of semester, question was measurement of microbial appendage. At the beginning, protester gave brief nearly six measurement way of microbial growth and level of microbial growth. The most commonly use measurement techniques ar serial dilution and colony counting, microscopic mobile phone counts, membrane filtration, turbidity, mass determination and metabolic activity. In this lab twain of them serial dilution and colony counting and turbidity were employ only. In serial dilution and colony counting which is also named as a viable cell counts, concentrated samples are dilute by serial dilution and then diluted samples are plated on gam ey complete media. There are two metal plate methods, spread plating and pour plating. They both have some pros and cons. Moreover turbidity is based on the diffraction or sparge of light by bacteria. To measure absorbance rate spectrophotometer was used. The purpose of this picture is learning measurement methods of microbial growth completely and practicing these techniques efficiently. Besides, plotting the graphical record of growth curve is one of the other purposes of this experiment.

Introduction In the laboratory, under convenient circumstances, a growing bacterial populace doubles at regular intervals. Growth is by geometrical progres! sion: 1, 2, 4, 8, etc. or 20, 21, 22, 23.........2n (where n = the number of generations). This is called exponential function function growth. In fact, exponential growth is only take time off of the bacterial life cycle, and not characteristic of the normal frame of growth of bacteria in nature (1). (2). Figure-1 As it fucking be seen from the figure 1 the population of bacteria in a...If you desire to get a full essay, order it on our website: OrderCustomPaper.com

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