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Biological Sciences

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The Integumentary, Skeletal and Muscular Systems

Question
10 out of 10
 

Which of the following is not necessary for muscle contraction according to the sliding filament model?

A ATP
B Calcium ions
C Creatine phosphate
D Troponin molecules
Ans. C

ATP is directly necessary to provide energy, calcium is necessary to activate the complex, and troponin is necessary to bind to calcium and participate in activation. Creatine phosphate is often present, and functions to “recharge” ADP to ATP, but it is not required for contraction.

The Integumentary, Skeletal and Muscular Systems Flashcard List

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