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What roles do atp and calcium play

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Julia has just started a weight-lifting program. As she lifts a dumbbell, her muscles contract

Describe and explain how muscle contraction works at the molecular level:

How do actin and myosin interact in a sarcomere to bring about muscle contraction?

What roles do ATP and calcium play?

Describe the longer-term effect of Julia's program. How will her muscles adapt over time to the change in workload?

Explain what happens to bones as a result of these weight-bearing exercises. Include an explanation of calcium and bone remodeling and how this relates to homeostasis?

Reference no: EM13935365

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