BIOB10H3 Lecture Notes - Lecture 1: Theodor Schwann, Bacteria, Mitosis
12 Sep 2016
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All living organisms are composed of cells. Study of cells at the microscopic and molecular level. Specialzed cells in multicellular organisms interactions between cells course objectives. Develop an appreciation of the fied of cell biology fundamental discoveries led to applications in clinical studies discovering cells robert hook (1665) Mattias schleiden (1838) theodor schwann (1839) rudolf vrchow (1855) Developed cell theory basic properties of cells. Engage in mechanical activities transport materials inside the cell. Can determine when they should stop or start dividing. Genetic changes that lead to cellular changes that are beneficial. Retained in future generations types of cells: No mitosis or meiosis less dna than eukaryotes. Division by mitosis and meiosis similarity between eu and prokaryotes. Genetic code is idenetical information encoded in dna. Outer cell engulfs inner cells forming membrane bound organelles. E. g. plant cells i. e. requires chloroplasts --> engulf a photosynthetic bacteria types of prokaryotes archaebacteria. Archaea are closer to eukaryotes than eubacteria types of eukaryotic cells.
