320Fall09Midterm4Prep_key - Cell Biology (BIO 320), Fall...

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Cell Biology (BIO 320), Fall 2009, Dr. Bushart Supplemental Homework for Midterm #4 Topic short-list : Since it’s the last midterm, these are the topics that are being covered by actual questions on the exam. Platelets Muscle contraction General motor protein properties Kinesins and dyneins Cytokinesis and RhoA Apoptosis Caspases Extrinsic/intrinsic pathways Pro and anti-apoptotic factors Junctions Cadherins Integrins Gap junctions ECM Cell-surface binding proteins Protein components General signaling Practice activities : 1. Review homework questions. a. Homework #7: 4 b. Homework #8: 4a, 4d, c. Homework #9: 2, 3, 4, 5, 6, 7 Extra questions 1. What is one possible component that could be malfunctioning if platelets do not properly expand/spread at a wound site? Platelet expansion depends upon the polymerization of actin filaments to push outward. This also initially requires the uncapping of the shortened actin filaments, so there could be a problem with gelsolin. The actin itself might be defective in some fashion as well. A
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This note was uploaded on 01/25/2010 for the course BIO 51055 taught by Professor Bushart during the Fall '09 term at University of Texas at Austin.

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320Fall09Midterm4Prep_key - Cell Biology (BIO 320), Fall...

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