BIOL130 Lecture : Biol130 - Unit1 Intro to the Cell Lecture Notes.pdf
11 Dec 2013
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After a century compound microscope - inc. magnification, resolution. Can see atoms -> molecules -> organelles -> cells. Fact (science) - current understanding based on observations and experiments. Law - theory that is tested, confirmed over many years, by many investigators. Cell is the basic structural unit of life (later) all cells come from pre-existing cells. Consistist of atoms -> molecules -> macromolecules -> organelles -> in plasma membrane. Genetic program: central dogma - dna -> rna -> protein. Dna synthesis (replication) -> rna synthesis (transcription) -> protein synthesis (translation) Week sept. 9th + sept. 16th page 1. F h t t p w w w n o v a p d f c o m no organelles. Rough er - synthesis of proteins for export, lysosomes, insertion into membranes. Chloroplasts - plant cells own dna, double layered membrane. Inside nucleus mrna mrna enters cytoplasm via nuclear pore. First thought that cells evolved becoming more complex.
