MBIO 1010 Chapter Notes - Chapter 5: Leptospira, Great Salt Lake, Oxidative Stress
6 Dec 2016
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Growth: measured as an increase in the number of cells. Binary fission: cell division following enlargement of a cell to twice its minimum size: fig. Generation time: time required for microbial cells to double in number: during cell division, each daughter cell receives a chromosome and sufficient copies of all other cell constituents to exist as an independent cell. In bacteria and archaea, growth in cell size, chromosome replication and even septum formation typically occur simultaneously. Most bacteria have shorter generation times than eukaryotic microbes: we say they evolve quicker . 5. 9a pattern: every time the cell divides it increases by a power. A relationship exists between the initial number of cells present in a culture and the number present after a period of exponential growth. Where: nt is the final cell number, no is the initial cell number. = (cid:3042) (cid:884)(cid:3041: n is the number of generations during the period of exponential growth.
