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• 1. Myosin-actin bond is broken • 2. Ca++ is pumped back into the SR; troponin regains normal shape and binding sites on actin are again covered and blocked • a) 4,3,2,1,5 b) 3,1,5,4,2 c) 3,1,5,2,4 • d) 2,4,3,5,1 e) 1,2,3,4,5 • 3. ATP binds to myosin heads • 4. Process repeats until AP ends • 5. ATP is split into ADP and Pi and the energy is used to recock the myosin head

• 1. Myosin-actin bond is broken • 2. Ca++ is pumped back into the SR; troponin regains normal shape and binding sites on actin are again covered and blocked • a) 4,3,2,1,5 b) 3,1,5,4,2 c) 3,1,5,2,4 • d) 2,4,3,5,1 e) 1,2,3,4,5 • 3. ATP binds to myosin heads • 4. Process repeats until AP ends • 5. ATP is split into ADP and Pi and the energy is used to recock the myosin head

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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7. Place in Correct order 1. Myosin-actin bond is broken • 2. Ca++ is pumped back into the SR; troponin regains normal shape and binding sites on actin are again covered and blocked a) 4,3,2,1,5 • b) 3,1,5,4,2 c) 3,1,5,2,4 d) 2,4,3,5,1 e) 1,2,3,4,5 • 3. ATP binds to myosin heads • 4. Process repeats until AP ends 5. ATP is split into ADP and Pi and the energy is used to recock the myosin head
Transcribed Image Text:7. Place in Correct order 1. Myosin-actin bond is broken • 2. Ca++ is pumped back into the SR; troponin regains normal shape and binding sites on actin are again covered and blocked a) 4,3,2,1,5 • b) 3,1,5,4,2 c) 3,1,5,2,4 d) 2,4,3,5,1 e) 1,2,3,4,5 • 3. ATP binds to myosin heads • 4. Process repeats until AP ends 5. ATP is split into ADP and Pi and the energy is used to recock the myosin head
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