Final answer:
White muscle fibers are designed for short bursts of activity and are used for quick, powerful movements, but they fatigue quickly due to anaerobic metabolism and limited myoglobin and mitochondria. The statement that white muscle fibers sustain short bursts of activity is a true.
Step-by-step explanation:
White muscle fibers, also known as fast-glycolytic (FG) fibers or Type-IIb fibers, primarily use anaerobic glycolysis to generate adenosine triphosphate (ATP), which is used for muscular contraction. They have a larger diameter and high glycogen content to quickly produce ATP and, therefore, high levels of tension, which is ideal for quick and powerful movements. However, these fibers have lesser amounts of mitochondria and myoglobin, giving them their white color and limiting them to short periods of use due to fast fatigue. This contrasts with red or slow-twitch fibers, which are rich in capillaries and mitochondria and can sustain extended periods of aerobic activity.