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Please answer all questions. 6. If tropomyosin is never moved off actin, what would be the result? 7....

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Medical Sciences

Please answer all questions.

6. If tropomyosin is never moved off actin, what would be theresult?

7. If you died, why would you develop rigor mortis?

8. All of the motor units in the fingers were very large (manymuscle fibers per motor unit. How would this affect function?

9. If the calcium (Ca++) pumps did not function how would thisaffect muscles?

Answer & Explanation Solved by verified expert
3.6 Ratings (427 Votes)
6 Increased calcium concentration in the cytosol causes muscle contraction by the action of two proteins called tropomyosin and troponin These proteins binds to actin filaments Tropomyosin is bound to actin filaments along their groove But in a striated muscle tropomyosin binds to troponin and when the calcium concentration is low the complex of tropomyosin and troponin    See Answer
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