All of the following are characteristics of fast glycolytic (FG)skeletal muscle fibers EXCEPT
A)fatigue rapidly
B)produce most powerful and rapid contractions
C)contain high concentration of myoglobin
D)have low number of mitochondria
E)contain large amounts of stored glycogen

Question

Quizplus · Accepted Answer

Fast glycolytic skeletal muscle fibers are known for their ability to produce powerful and rapid contractions, but they have a low resistance to fatigue, as they rely heavily on anaerobic metabolism to produce energy. These fibers also have a low number of mitochondria, which is compensated for by their large amounts of stored glycogen, which can be metabolized quickly to produce ATP. However, fast glycolytic fibers do not contain a high concentration of myoglobin, as this is typically found in slow oxidative fibers, which have a higher dependence on aerobic metabolism.

All of the Following Are Characteristics of Fast Glycolytic (FG)skeletal