BIOL 2021 Lecture Notes - Cell Membrane, Tinkerer, Micrograph
Document Summary
Biology is a contingent science: things observed in cells are contingent on their evolutionary history. How does the wbc detect the bacteria, how does wbc move, etc. Video 15. 4: calcium signalling: glail cells signalling, uorescent detectors show changes in ca conc. Cells randomly light up when in the presence of a neurotransmitters. Raises the question of: cell-cell contact and communication. Video 20. 1: breast cancer cells: shows the cancerous cells having a disrupted cell cycle, cell-cell contact, and cell- cell communication. Fig 1-14a/b: e. coli electron micrograph: no internal membrane, contains: Fig 1-36: yeast electron micrographs: scanning electron micrograph (a) and. Transmission electron micrograph (tem,b: tem of cross section of cell shows internal structures of yeast cell: Eukaryotes: mammalian pancreas: cell explorer fig 13-8: pancreas electron micrograph. Shows lots of vesicles in the cells this is because the pancreas is responsible (specialized) for secreting certain molecules: fig 1-25: mammalian cell drawing.
