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Muscle Contractions Solutions Library

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Muscle Contractions

Q. What happens to ATP hydrolysis products after the hydrolysis of ATP by the myosin head, but before the myosin head contacts the actin filament?A. T...

Solved • May 20, 2020

Muscle Contractions

Q. When is the force of contraction of the muscle strongest?A. when there is maximal overlap between the thick and thin filamentsB. when Ca2+ levels a...

Solved • May 12, 2020

Muscle Contractions

Q. If ATP was removed from the cell, would the muscle be stiff or flaccid?A. It would be stiff because the myosin head would be unable to release the ...

Solved • May 12, 2020

Muscle Contractions

Q. Why is Ca2+ important to the process of sarcomere shortening?A. Ca2+ binds to the troponin complex, which results in exposure of the myosin binding...

Solved • May 12, 2020

Muscle Contractions

Q. Which step of cross-bridge cycling is considered the power stroke?A. when the myosin cross-bridge formsB. when the phosphate is released and the my...

Solved • May 12, 2020