Which of the following statements is correct regarding the red and white locomotor muscles of fish?
A)White muscle exhibits maximal power output at lower tail-beat frequencies.
B)Fish tend to use red muscle for slow,often continuous swimming.
C)Red muscle tends to be more glycolytic.
D)Red muscle shows maximal power output at high tail-beat frequencies.

Question

Quizplus · Accepted Answer

Red and white muscles have different properties in fish. Red muscle is characterized by slow, sustained contractions and is used for slow, often continuous swimming, whereas white muscle is used for fast, powerful movements such as escape responses. Red muscle is more aerobic and has a higher density of capillaries and myoglobin than white muscle, making it better suited for sustained activity. White muscle, on the other hand, is more glycolytic and has a greater capacity for anaerobic energy production, making it better suited for short bursts of activity. Therefore, statement B is correct. The other statements are incorrect or only partially correct.

Which of the Following Statements Is Correct Regarding the Red