BIOL 1115 Lecture 5: Chapter 5
9 Mar 2017
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Figures to review: 5. 1, 5. 4, 5. 10, 5. 11, 5. 12, 5. 13, 5. 14, 5. 15, 5. 16, 5. 17, 5. 19, 5. 20, 5. 21, 5. 22, 5. 23, 5. 24: tables to review: 5. 4, page 104 text. 5. 1 - all (exception: genomes and proteomes connection; membrane structure can be viewed ) 5. 3 - all (not responsible for: exactly how phospholipids are synthesized, the details of glycosylation; List the main macromolecules that comprise the plasma membrane. Plasma membrane: lipids -- phospholipids, proteins, carbohydrates. It is considered a mosaic because it has many macromolecules that make up the membrane: the membrane is also made up of many different types of molecules that form a si(cid:374)gle structure (cid:894)(cid:862)(cid:373)osaic(cid:863)(cid:895). Carefully study the image of the membrane below: They are generally intracellular receptors (typically cytoplasmic) and initiate signal transduction for steroid hormones which lead to changes in gene expression over a time period of hours to days. Notice that not all proteins completely cross the membrane.
