BIO120H1 Lecture Notes - Exponential Growth, Exponential Function, Paramecium

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29 Nov 2012
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BIO120H1 Full Course Notes
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BIO120H1 Full Course Notes
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How populations grow: the exponential and logistic equations. Mitosis: 2x the population from the last time step. In the article, the species paramecium is being observed in the case of population growth. Exponential equation is a model to be used for the growth of a single population. Best used for single celled organisms which reproduce asexually by cell division. N(t) = rtn(0) is the general equation where r is the multiple factor by which the population increases: ex. If an organism divides two times (4 individuals) and one dies every time, then the equation will be n(t) = 3t(0) R = finite rate of population increase : can be expressed in any way including 2. 71828 = euler"s constant = e, when r = e, equation n(t) = e representing continual growth (no definite rt time steps) Gives you the growing population with a given time. ) = x, lawn both side to change the equation to ln[n(t)] = rt.