D103 Lecture 17.2- extraacellular polarity

D103 Lecture 17.2- extraacellular polarity - Bio D103 Cell...

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Bio D103: Cell Biology Instructor: Dr. Scott Atwood Fall 2016
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This class will be using EEE Evaluations . This primer gives you the basic info you need to know to get started; your instructors/TAs will tell you more. What is Evaluations? Online evaluations allow students to privately submit feedback to their instructors and TAs to help improve teaching methods for future classes. All responses are anonymous. Where is Evaluations? Evaluations is on the EEE website: To access Evaluations, login to EEE and click the "Evaluate" link under this class on your MyEEE page. Or, click the "ToolBox" link in the upper-left of any EEE page, then click the "Evaluations" link under "Assessment." Evaluation Results Beginning Fall 2012, quantitative results for participating faculty are available at More Info Step-by-Step Instructions EEE Support Web: Email: [email protected] Phone: (949) 824-2222 Basic Instructions Complete an Evaluation: 1. In Evaluations, locate your class under “Evaluations You May Take.” 2. Click “Evaluate” and continue to “Take Evaluation” after reviewing the information. 3. Fill in the form and carefully review your responses before submitting. Anonymity: Responses are anonymous and confidential. Instructors and TAs cannot view midterm evaluation results until the evaluation has closed, and cannot view final evaluation results until after the Registrar’s final grade submission deadline. Evaluations Student primer for Midterm evaluations: they are anonymous! I can see who participates, but not which evaluation you filled out participation is part of your grade! 2% for surveys/ evaluations throughout the course Due Nov. 2 at 5PM!!! 83% of the class has completed an evaluation. Thank you!
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Announcements Rachel is changing her office hours from Friday to Thursday this week in 4205A MH at 4pm Remy will hold a review session for midterm 2 this friday (11/4) at 118 MSTB from 5-6:50pm. Here is the link to download her powerpoint: biotutor/home/D103-Atwood
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Weekly quiz statistics
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Weekly quiz questions
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Weekly quiz questions
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Actin stress fiber structure A) red= myosin II, green= alpha-actinin Stress fibers with alternating polarity can contract During contraction, myosin slides between filaments, pulling them towards each other In stress fibers with uniform polarity, myosin does not cause contraction but instead moves along filaments (transport?)
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Loss of myosin activity affects some stress fibers blebbistatin is a drug that binds myosin when NOT actin bound inhibiting myosin does not alter dorsal stress fibers, but does alter ventral stress fibers and arcs
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Weekly quiz questions
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integrins cadherins Integrins link the ECM to the cytoskeleton
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Integrins link the ECM to the cytoskeleton integrins are transmembrane heterodimers (18 alpha subunits, 8 beta subunits) humans have over 24 isoforms bind to substrate with low affinity
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