Which of the Following Statements Are True of the Sliding

question 102

Multiple Choice

Which of the following statements are true of the sliding filament mechanism? (Read carefully and select all of the correct statements.)

• A)The calcium ions released from the sarcolemma bond to troponin.
• B)The sarcoplasmic reticulum inhibits contraction until a nerve impulse arrives.
• C)With calcium ions,troponin shifts tropomyosin away from actin.
• D)Myosin filaments pull actin filaments toward the center of the sarcomere.
• E)Myosin releases the energy from ATP.
• F)When a muscle fiber contracts,all of its sarcomeres contract.

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