The speed with which force is developed by skeletal muscles is determined by the
A) Ca2+ATPase activity, myosin ATPase isoform, and sarcoplasmic calcium concentration.
B) Ca2+ATPase activity.
C) sarcoplasmic calcium concentration.
D) myosin ATPase isoform.
E) Ca2+ATPase activity and sarcoplasmic calcium concentration.
D) myosin ATPase isoform.
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Select the characteristics of slow-twitch muscle fibers. Check all that apply.
A. Few capillaries are present. B. These fibers are also known as white fibers. C. Myoglobin is present in high concentration D. Mitochondria are numerous in these fibers.
Neurogenesis is an example of plasticity in the human central nervous system
Indicate whether the statement is true or false
An incompetent pulmonary semilunar valve could result in less blood reaching the
A. aorta. B. lungs. C. right atrium. D. heart muscle. E. right ventricle.
The sodium chloride molecule breaks apart in water. What does "E" represent (the process)?
A. chloride ion B. dissociation C. water molecule D. sodium ion E. salt crystal