Red muscle fibers contain an abundance of _____ for aerobic respiration.
A) myosin
B) indentations
C) myofibrils
D) sarcomeres
E) myoglobin

Question

Red muscle fibers contain an abundance of _____ for aerobic respiration.  
A) myosin
B) indentations
C) myofibrils
D) sarcomeres
E) myoglobin

Quizplus · Accepted Answer

Red muscle fibers contain a high concentration of myoglobin, a protein that binds oxygen and facilitates its storage in muscle cells. This allows for efficient aerobic respiration, making red muscle fibers highly resistant to fatigue. Myosin, indentations, myofibrils, and sarcomeres are all fundamental components of muscle tissue but are not specifically related to aerobic respiration.

Red Muscle Fibers Contain an Abundance of _____ for Aerobic