6 The advantage of having many nuclei in a skeletal muscle fiber is A) the abili

Question

6 The advantage of having many nuclei in a skeletal muscle fiber is A) the ability to contract. B) the ability to produce more ATP with little oxygen. C) the ability to repair the fiber after an injury. D) the ability to produce large amounts of the enzymes and structural proteins needed for contraction. E) none of the above 7) The skeletal muscles store calcium ions in the A) sarcolemma. B) sarcomere. C) sarcosome. D) sarcoplasmic reticulum. E) sarcoplasm. 8) The area between Z lines is the A) sarcolemma. B) sarcomere. C) sarcoplasmic reticulum. D) myo fibril. E) myofilament astoitor 9) The center of the sarcomere is the A) Z line. B) M line. C) H band. D) A band. E) I band. 10) The terminal cisternae are parts of the A) myofilaments. B) sarcoplasmic reticula. C) myofibrils. D) I bands. E) sarcolemma. muia muta mui 11) The tropomyosin molecules are attached to A) actin molecules. B) myosin molecules. C) troponin molecules. D) ATP molecules. E) calcium ions.

Explanation / Answer

6) The correct option is D) The ability to produce large amounts of the enzymes and structural proteins needed for contraction.

Skeletal muscles have many nuclei, which help in the production of large amounts of the enzymes and structural proteins that are required for contraction.

7) The correct option is D) Sarcoplasmic reticulum.

The skeletal muscles store calcium ions in the terminal cisternae of the sarcoplasmic reticulum.

8) The correct option is B) sarcomere.

A sarcomere is the unit of striated muscle tissue. It occurs between two Z lines.

9) The correct option is B) M line.

The M line is present in the center of the A band, therefore, it is in the center of the sarcomere.

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