BIOL10004 Lecture Notes - Lecture 1: Flagellum, Metaphase, Facilitated Diffusion

• School: University of Melbourne
• Department: Biology
• Course: BIOL10004
• Professor: All

Document Summary

First generalization of biology: evolution through natural selection. Second generalization of biology: unity of biochemical processes (all organisms share certain biochemical processes. Third generalization of biology: all organisms consist of cells (cell: closed domain where chemical reactions required for life are carried out). Reproduction can replicate, pass on cellular info. Changeable inheritance- capacity to alter cell info, adapt to environment. Containment all functions contained my barrier/membrane. All organisms arose from earlier more primitive organisms. Evolution- natural selection- variation- favoring of fitter traits- evolution. Stromatolites: cyanobacteria (single cell photosynthesizing bacteria) 3. 7 billion years old. Contain chlorophyll a, they changed atmosphere , more evolution plus diversity as result. Spontaneous mutations occur at high frequencies in prokaryotes, generating lots of genetic diversity. Decomposers and recyclers (eg. bacteria in sewage plant to decompose) Agents in industrial and agricultural processes (and medical) (eg. beer, yogurt, nitrogen fixing legume nodules, making pharmaceuticals) Archaea: more closely related to eukaryotes genetic translation and transcription more similar to eukaryotes.