Chapter 6 study guide(1).docx - BIOS 1030 Study Guide...

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BIOS 1030 Study Guide Chapter 6: Muscles 1. Review the 3 main types of muscle tissues from Chapter 4. 2. What is a muscle fiber equivalent to? 3. What attaches a muscle to bone? 4. Be able to describe briefly the structure of a muscle from large to smaller structures: muscle, fascicles, muscle fiber, myofibrils, sarcomeres, myofilaments (actin and myosin). 5. What is the contractile unit of a muscle? 6. What two proteins are sarcomeres made up of? 7. What are the repeating units in a myofibril? 8. Which protein in a sarcomerel has heads on it that can be used for attachment (think golf clubs)? 9. Be able to explain muscle contraction from beginning to end in order. 10. What is the role of acetylcholine in muscle contraction? Calcium? Myosin? ATP? 11. What is a crossbridge? What molecule allows crossbridges to be made and broken? 12. Where does calcium come from in the muscle fiber/cell? (where is it stored) 13. What molecule does calcium bind to and what is the result?
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