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EEOB 2520 - Exam 9 Questions & Answers
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EEOB 2520 - Exam 9 Questions & Answers
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EEOB 2520 - Exam 9 Questions &Answers
Which is a correct pairing of an action and the consequence in crossbridge cycling? Correct
Ans-the flex of the crossbridge directly causes the movement of the actin
the hydrolysis process is only associated with causing the deflexion of the crossbridge
When ______ is absent from the cytosol of a skeletal myofiber, the cross bridges are in the
_____ position Correct Ans-ATP - flexed
When a skeletal myofiber contracts... Correct Ans-the M line moves relative to the Z line/disc
the sarcoplasmic reticulum... Correct Ans-causes the myofibers to have myofibrils
the concentration of calcium ______ in the skeletal myofiber when acetylcholine is ______ from
the neuromuscular junction Correct Ans-does not change - present
Which is a correct statement about skeletal muscle? Correct Ans-tropomyosin does not have
a binding site for calcium
the muscle is innervated by multiple somatic efferents
When a skeletal myofiber is at rest... Correct Ans-tropomyosin directly prevents myosin from
attaching to actin
the crossbridge does not need to have an ATP added to it to start contraction
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