Fast-twitch skeletal muscle fibers, called white muscle, are characterized by
A) a high concentration of myoglobin.
B) abundant mitochondria.
C) the rapid development of high tension.
D) the ability to sustain activity for a long time.
E) a higher oxygen requirement than that of slow-twitch fibers.
Correct Answer:
Verified
Q27: Which is a feature of cardiac muscle
Q28: When troponin binds calcium,
A) it allows tropomyosin
Q29: When an action potential arrives at the
Q30: Skeletal muscle fibers show a range of
Q31: Which statement about skeletal muscle contraction is
Q33: Which feature represents one similarity between fast-
Q34: Which statement about smooth muscle is true?
A)
Q35: Refer to the figure. 
Q36: Fast-twitch fibers
A) are also called red muscle.
B)
Q37: Refer to the figure showing muscle cells.
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