Crossbridge Cycling Jeopardy Template

True or False	Definitions	Mystery	Figures 10.13 and 10.14	Identification
100 False Is calcium required for crossbridge cycling?	100 A description of the repetitive movement of thin microfilaments What is the sliding filament theory?	100 ADP and Phosphate What form of energy is required by the sliding filament theory?	100 ADP and inorganic phosphate What is ATP split into?	100 ATP What gets produced in the release of the myosin head?
200 True Calcium binding is the first step in the cross-bridge cycle.	200 it is a component of thick filaments- composed of a head, neck, and tail What is a myosin head?	200 It occurs when muscular tissue contracts/flexes. When does cross-bridge cycling occur?	200 Actin and Myosin What are the two types of microfilaments in sarcomere?	200 It is released from the sarcoplasmic reticulums. Where does calcium come from before the cross-bridge cycle?
300 True Does Troponin bind to calcium?	300 A protein that forms together with myosin What is actin?	300 Calcium What ion is crucial to this process?	300 It shortens In a fully contracted skeletal muscle what happens to the sarcomere?	300 Thick filaments are formed from bundles of myosin protein molecules - thin filaments are composed of 2 strands of actin protein twisted around each other What is the difference between thick and thin filaments?
400 False Is Iron needed in the sliding filament?	400 The binding site for calcium in crossbridge cycling. Define troponin	400 By binding each myosin head between thick and thin filaments How is a crossbridge formed?	400 At the start of the process, the sarcomere is relaxed, and by the end it is contracted. What changes in the sarcomere from the beginning to the end of the cross-bridge cycling process?	400 It forms between actin and myosin. Where does the cross-bridge form?
500 True Does ATP get produced in the release of myosin head?	500 the four step process that is completed these steps include crossbridge formation, power stroke, release of myosin from actin and resetting of the myosin head. What is the crossbridge cycle?	500 ADP and Phosphate cause the power stroke while the ATP causes the release of the myosin head from the actin How does the use of ADP and Phosphate differ from the use of ATP during the sliding filament theory?	500 The A band, I band and H zone In a relaxed skeletal muscle, what is visible?	500 The release of ADP What causes the myosin head to bend?

Crossbridge Cycling

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