BIOS 2210 Lecture 4: Microbial Nutrition & Bacterial Growth
24 Sep 2018
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They form colonies, groups to grow, not just a single cell growing but a population of bacteria reproducing. Eukaryotes: humans: mitosis cytokinesis and meiosis (sexual reproduction) Every generation looks the same, asexual reproduction acterial rowth. Clones, but there are some chances for genetic diversity. Generation time is also called doubling time and is defined as the time it takes for the population to double through one round of binary fission. Number of bacterial cells increases exponentially and can be expressed as 2n. = b x 2n (an expression of growth by binary fission) Logb = logb + nlog2 n = logb - logb log2 n = logb - logb. Lag phase media has been inoculated, no or low change in number of cells-are metabolically active, synthesizing proteins. Log growth phase - (log) growth phase, sometimes called exponential growth phase, the cells are actively dividing by binary fission and their number increases exponentially.
