Anatomy and Cell Biology 3309 Lecture Notes - Lecture 1: Lipoprotein, Cytoskeleton, Ribosomal Rna
3 Dec 2014
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Document Summary
This lecture is a summary of material covered in chapter 2. This material should be review; if not, you should read through and understand the contents of chapter 2. All cells - same general plan, but structure varies according to function. Proteins (arranged as integral and peripheral with hydrophilic/hydrophobic regions) The pm is an artifact = something that would have existed in real life but was extracted/removed during slide preparation can"t see pm in light microscopy, but see the. Protein functions: pumps eg. sodium potassium, chloride calcium, channels can be chemical or electrical, receptors eg. lipoproteins, transducers signal carriers, enzymes eg. atpase, lipase, structural adhesion/link to ecm and other things. Membrane is asymmetric (extracellular face is different from intracellular face) Pm is 10nm thick, can be used as a ruler to determine what other structures are in the cell. Organelles: use energy to function; can be membrane-bound and non-membrane bound: membrane bound organelles:
