Which of following is a common characteristic of fast glycolytic (FG)skeletal muscle fibers?
A)large amount of myoglobin.
B)many mitochondria.
C)low concentration of creatine kinase in the sarcoplasm.
D)slow myosin ATPase.
E)high amount of glycogen in the sarcoplasm.

Question

Quizplus · Accepted Answer

Fast glycolytic (FG) skeletal muscle fibers rely heavily on glycolysis for energy production, which requires a high amount of glycogen in the sarcoplasm. FG fibers have few mitochondria, a low concentration of creatine kinase in the sarcoplasm, and a fast myosin ATPase, which allows for rapid contraction and relaxation. Myoglobin is not commonly found in FG fibers.

Which of Following Is a Common Characteristic of Fast Glycolytic