Which of the following statements concerning slow-twitch oxidative muscle fibers is false?Multiple ChoiceThey split ATP slowly.They have large deposits of myoglobin.They have low glycogen stores.They have a well-developed blood supply.They are well adapted to anaerobic activity.
Question
Which of the following statements concerning slow-twitch oxidative muscle fibers is false?Multiple ChoiceThey split ATP slowly.They have large deposits of myoglobin.They have low glycogen stores.They have a well-developed blood supply.They are well adapted to anaerobic activity.
Solution
The false statement concerning slow-twitch oxidative muscle fibers is: "They are well adapted to anaerobic activity."
Slow-twitch oxidative muscle fibers are actually well adapted to aerobic activities, not anaerobic. They are designed for long-duration, endurance activities and are highly resistant to fatigue. They have a well-developed blood supply, large deposits of myoglobin, and split ATP slowly, which allows them to sustain activity over a long period. They do not have high glycogen stores, but they can use fats and proteins as well as carbohydrates for energy, which also contributes to their endurance.
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