BIOL 2303 Lecture Notes - Lecture 5: Escherichia Coli, Microorganism, Absorbance
8 Feb 2018
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Sexual: fusion of haploid gametes to form a diploid zygote. Asexual : spores: molds & yeast, budding: yeast, binary fusion: protozoa, algae and yeast. Growth of a single celled microorganism is by binary fission: generation of two cells from one. In a rod-shaped bacterium elongation of cell to twice its length followed by dividing into two. In budding yeast, division is asymmetric: daughter cell is small than the parental cell. Time taken to double is referred to as generation time. Steps in cell division: dna replication, formation of the divisome complex, septum formation. Must occur at least once per cell. Each daughter cell receives an identical chromosome. A new round of replication begins before the preceding one is finished. Directs synthesis of new cytoplasmic membrane and cell wall. Complex of proteins that mediated cell division. Fts proteins: found in all bacteria, but not eukarya.
