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Molecular Biology Of The Cell 6th Edition by Bruce Alberts, Alexander Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Edition 6ISBN: 978-0815345244Molecular Biology Of The Cell 6th Edition by Bruce Alberts, Alexander Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Edition 6ISBN: 978-0815345244 Exercise 9
How does a centrosome "know" when it has found the center of the cell?
A. As shown in Figure Q16-3B, all movement of kine- sin is in one direction (toward the plus end of the micro- tubule). What supplies the free energy needed to ensure a unidirectional movement along the microtubule? b. What is the average rate of movement of kinesin along the microtubule?
C. What is the length of each step that a kinesin takes as it moves along a microtubule?
D. From other studies it is known that kinesin has two globular domains that can each bind to
tubulin, and that kinesin moves along a single protofilament in a microtu- bule. In each protofilament, the 
tubulin subunit repeats at 8-nm intervals. Given the step length and the interval between 
tubulin subunits, how do you suppose a kine- sin molecule moves along a microtubule?
E. Is there anything in the data in Figure Q16-3B that tells you how many ATP molecules are hydrolyzed per step?
A. As shown in Figure Q16-3B, all movement of kine- sin is in one direction (toward the plus end of the micro- tubule). What supplies the free energy needed to ensure a unidirectional movement along the microtubule? b. What is the average rate of movement of kinesin along the microtubule?
C. What is the length of each step that a kinesin takes as it moves along a microtubule?
D. From other studies it is known that kinesin has two globular domains that can each bind to
tubulin, and that kinesin moves along a single protofilament in a microtu- bule. In each protofilament, the tubulin subunit repeats at 8-nm intervals. Given the step length and the interval between tubulin subunits, how do you suppose a kine- sin molecule moves along a microtubule? E. Is there anything in the data in Figure Q16-3B that tells you how many ATP molecules are hydrolyzed per step?
Explanation
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Molecular Biology Of The Cell 6th Edition by Bruce Alberts, Alexander Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
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