Which of the Following Is TRUE According to the Sliding

question 67

Multiple Choice

Which of the following is TRUE according to the sliding filament mechanism of muscle contraction?

• A)When a muscle fiber is not contracting, the thin fibers are not connected to the thick fibers.
• B)When actin pushes the Z lines farther apart, the muscle expands.
• C)The energy for contraction comes from the breakdown of actin into myosin.
• D)The muscle relaxes when calcium ions are released into the fluid surrounding the thick and thin filaments.

Understand the relationship between pessimism and health outcomes.

Recognize the role of protective factors in overcoming challenges.

Comprehend the significance of hope and finding meaning in suffering for survival.

Identify appropriate tools for measuring life stress.

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