PHCY219 Lecture Notes - Facultative Anaerobic Organism, Logarithmic Scale, Rod Cell
10 Aug 2013
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Document Summary
Objectives: describe microbial growth and process of binary fission. Microbial growth refers to the growth of the population (# in the colony) rather than the size of the individual cell. Need to know this diagram for the first objective of the lecture. This top rod cell is called the parent cell. Duplication of bacterial chromosome can be seen in the second part of the diagram. The bacteria make more cell wall and form the septum. From the diagram we can also see that the dna migrates. Now there are two separate cells (two daughter cells)! This diagram represents binary fission of coccyl (spherical) bacteria. It demonstrates that this type of division can lead to a great increase in population number. Generation mean time = how long it take the division process to finish (i. e. time it takes for a cell to divide) Generation mean time varies for different species.
