Which of the following statements is incorrect about skeletal muscle fibers?
Correct answer: C. They contain O2 storing molecules called hemoglobin.
- A. They are multinucleated.
- B. They are 10 - 100 ?m in diameter & surrounded by sarcolemma
- C. They contain O2 storing molecules called hemoglobin.
- D. Their cytoplasm contains high concentration of carbohydrates
Explanation
Skeletal muscle fibres contain myoglobin, an oxygen-storing pigment, rather than haemoglobin, which is the oxygen-carrying protein in red blood cells. Students may choose a statement about multinucleation or fibre diameter, but those descriptions are typical features of skeletal muscle fibres.
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