Multiple Choice
Which of the following describes step three of a muscle contraction?
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9. Muscle Tissue
Steps of Muscle Contraction
Back9. Muscle Tissue
Steps of Muscle Contraction
- Multiple ChoiceWhich of the following steps of the crossbridge cycle occurs immediately before the power stroke?359views
- Multiple ChoiceIn the steps of skeletal muscle contraction, what is the primary role of released from the sarcoplasmic reticulum?4views
- Multiple ChoiceWhich of the following occurs during the power stroke of muscle contraction?329views
- Multiple ChoiceIn the sliding filament model of skeletal muscle contraction, what is the primary role of Ca released from the sarcoplasmic reticulum?2views
- Multiple ChoiceDuring skeletal muscle contraction, what is the primary role of calcium ions () in enabling cross-bridge cycling?6views
- Multiple ChoiceIn the cross-bridge cycle of muscle contraction, at which stage does ATP hydrolysis occur?261views
- Multiple ChoiceIn the steps of skeletal muscle contraction, what is the primary role of calcium ions (Ca2+) in initiating contraction?3views
- Multiple ChoiceWhich of the following is not a step of skeletal muscle contraction?293views
- Multiple ChoiceIn the steps of skeletal muscle contraction, what best describes the power stroke?3views
- Textbook Question
When Eric returned from jogging, he was breathing heavily and sweating profusely, and he complained that his legs ached and felt weak. On the basis of what you have learned about muscle energy metabolism, respond to the following questions:
b. What ATP-harvesting pathway have his working muscles been using that leads to such a breathing pattern?
428views - Multiple ChoiceWhat role do calcium ions and ATP play in the process of muscle contraction?218views
- Multiple ChoiceWhich of the following provides the final 'go signal' for muscle contraction?304views
- Multiple ChoiceWhich of the following statements about muscle contraction is true?253views
- Multiple ChoiceWhich of the following correctly describes the initial step in the process of muscle contraction?334views