Worksheet for march 4-5th

Worksheet for march - 1 Distinguish two protein localization processes involving a Nucleus protein(DNA polymerase or a Secretory protein(Insulin

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Worksheet for March 4 – 5 th discussion section - Questions on cytoskeleton and replication  1. Distinguish two protein localization processes involving a Nucleus protein (DNA polymerase) or a Secretory protein (Insulin). Nucleus protein: Nucleus – Translation in cytoplasm (nuclear localization signals) - nucleus Secretory protein : Nucleus - Translation in ER -Golgi-secretion 2. Colchicine causes disassembly of microtubules. What effect (if any) might you see on a giant algal cell in which cytoplasmic streaming is occurring? Explain BRIEFLY. No effect. Microtubules not involved in cytoplasmic streaming. 3. Fill in answers in the following: _ Microtubules __ a cytoskeletal element that is required for the movement of chromosomes during cell  division __ Myosin __ the motor protein with which actin interacts to promote amoeboid movement or cytoplasmic  streaming __ Intermediate filament __ a particularly sturdy component of the cytoskeleton that is composed  of  keratin–type proteins and that helps to provide strength to cells or to organelles _ Microtubules __ cilia are basically composed of plasma membrane covering this particular cytoskeletal  element __ Microtubule __ directed movement of vesicles with proteins within a cell occurs along this particular 
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This note was uploaded on 11/29/2010 for the course BIO 311C taught by Professor Satasivian during the Fall '08 term at University of Texas at Austin.

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Worksheet for march - 1 Distinguish two protein localization processes involving a Nucleus protein(DNA polymerase or a Secretory protein(Insulin

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