Which of the following is NOT a characteristic of skeletal muscle contraction?

• A. It contracts rapidly.
• B. It can exert tremendous power.
• C. It can perform both anaerobic and aerobic metabolism.
• D. It can contract for long periods of time without tiring.

Answer: (D)

Verified step by step guidance

1. Understand the characteristics of skeletal muscle contraction: Skeletal muscles are known for their ability to contract rapidly and exert significant power. They are also capable of performing both anaerobic and aerobic metabolism.
2. Analyze the statement about rapid contraction: Skeletal muscles are designed to contract quickly, which is essential for movements that require speed and agility.
3. Consider the power exertion capability: Skeletal muscles can exert tremendous power, which is necessary for activities that require strength, such as lifting heavy objects.
4. Evaluate the metabolic capabilities: Skeletal muscles can perform both anaerobic metabolism (without oxygen, for short bursts of activity) and aerobic metabolism (with oxygen, for sustained activity).
5. Identify the characteristic that does not fit: Skeletal muscles are not typically known for contracting for long periods without tiring. This characteristic is more aligned with cardiac or smooth muscles, which are designed for endurance.