Bacterial Growth Curve

Bacterial suppuration curve
Bacterial growth in jam culture can be modelled with four different builds: slowing phase (A), exponential or pound phase (B), unmoving phase (C), and death phase (D). In the book dour the bacteriuml growth phase classified 07 stages like-(A)lag phase (B)early log phase (C) log/exponential Phase (D)Early Stationery phase (E)stationary phase (f) Early Death phase (G)Death phase..
.During lag phase, bacteria adapt themselves to growth conditions. It is the period where the individual bacteria argon maturing and not yet able to divide. During the lag phase of the bacterial growth cycle, synthesis of RNA, enzymes and other molecules occurs.
Exponential phase (sometimes called the log phase or the logarithmic phase) is a period characterized by cell manifold. The number of new bacteria appearing per social unit time is proportional to the present creation. If growth is not limited, doubling will hatch at a constant enjoin so both the number of cells and the tempo of population increment doubles with each consecutive time period. For this type of exponential growth, plotting the natural logarithm of cell number against time produces a straight line. The slope of this line is the specific growth drift of the organism, which is a measure of the number of divisions per cell per unit time.



The authentic rate of this growth (i.e. the slope of the line in the figure) depends upon the growth conditions, which affect the frequency of cell division events and the probability of both daughter cells surviving. Under controlled conditions, cyanobacteria can double their population four times a day. Exponential growth cannot continue indefinitely, however, because the medium is soon depleted of nutrients and enriched with wastes.
During stationary phase, the growth rate slows as a result of nutrient depletion and accumulation of poisonous products. This phase is reached as the bacteria begin to exhaust the resources that are available to them. This phase is a constant...If you want to get a full essay, order it on our website: Orderessay



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