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Unformatted text preview: 6-Feb-07BiologyCells Cell Theory•Cell is basic unit of life•Cells only derived from cells•Every organism consists of at least 1 cell (a theory is an explanation of some phenomenon that is based on facts and multiple experiments)The size of the photons limits the resolution in a light microscopeThe electron microscope helps to see smaller things better because of a much better resolution. •Can only observe dead things•Makes light microscope used more because it won’t kill •May cells get their energy by diffusion•Easier to diffuse when smaller surface area. explains why cells are small•Homogenization – making the cells all equal (smashing and squishing the cells)•Invitro – in a test tube•Inviro – in a living cell•Insitu – in tissue•Prokaryotes (Eubacteria, Archae)oDon’t have membrane enclosed organelles: no nucleus, mitochondria, ER etcoDo have DNA in the nucleoid, cytoplasm (cytosol and ribosomes....
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This note was uploaded on 09/29/2009 for the course NPB NPB 101 taught by Professor Weidner/wingfield during the Spring '08 term at UC Davis.
- Spring '08