Test: GRE Subject Test: Biology

Skeletal muscle fibers are made up of white and red fibers. White fibers are considered fast-twitch and red fibers are considered slow-twitch. 


Which of these statements INCORRECTLY describes a difference between white and red fibers?

White fibers fatigue more quickly than red fibers

White fibers utilize aerobic respiration more than red fibers

Red fibers have more mitochondria than white fibers

White fibers have less myoglobin than red fibers

1/1 questions


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