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51- are links between the Filamentous F-actin of thin filaments and myosin heads of thick filaments. They must form and dissociate repeatedly during contraction. A. Cross bridges B. Calcium switches C. Contraction cycles 1 D. Power strokes 52-Calcium plays a key role during contraction of skeletal muscles. When calcium concentration is low in the intracellular compartment, myosin-binding sites on actin are blocked by intracellularly, Calcium binds to When calcium levels rise to shift and allowing myosin to bind. causing B. A. Tropomyosin, Troponin C, Tropomyosin Tropomyosin, Troponin T, Troponin C C. Troponin I, Troponin C, Troponin T D. Troponin C, Troponin T, F-actin while 53-During the contraction of sarcomere, A. A band gets bigger, H zone becomes smaller. B. Sarcomere does not change in size, H zone gets bigger C. H zone double in size, Z lines become closer D. A band does not change in size, Sarcomere becomes smaller

51- are links between the Filamentous F-actin of thin filaments and myosin heads of thick filaments. They must form and dissociate repeatedly during contraction. A. Cross bridges B. Calcium switches C. Contraction cycles 1 D. Power strokes 52-Calcium plays a key role during contraction of skeletal muscles. When calcium concentration is low in the intracellular compartment, myosin-binding sites on actin are blocked by intracellularly, Calcium binds to When calcium levels rise to shift and allowing myosin to bind. causing B. A. Tropomyosin, Troponin C, Tropomyosin Tropomyosin, Troponin T, Troponin C C. Troponin I, Troponin C, Troponin T D. Troponin C, Troponin T, F-actin while 53-During the contraction of sarcomere, A. A band gets bigger, H zone becomes smaller. B. Sarcomere does not change in size, H zone gets bigger C. H zone double in size, Z lines become closer D. A band does not change in size, Sarcomere becomes smaller

Biology: The Dynamic Science (MindTap Course List)
Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Chapter43: Muscles, Bones, And Body Movements
Section: Chapter Questions
Problem 4TYK
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C Sliding filament model D. Sliding microtubule model filaments. They must form and dissociate repeatedly during contraction. are links between the Filamentous F-actin of thin filaments and myosin heads of thick А. Cross bridges B. Calcium switches C. Contraction cycles ! D. Power strokes 52-Calcium plays a key role during contraction of skeletal muscles. When calcium concentration is low in the intracellular compartment, myosin-binding sites on actin are blocked by intracellularly, Calcium binds to When calcium levels rise causing A. Tropomyosin, Troponin C, Tropomyosin to shift and allowing myosin to bind. B. Tropomyosin, Troponin T, Troponin C C. Troponin I, Troponin C, Troponin T D. Troponin C, Troponin T, F-actin 53-During the contraction of sarcomere, while A. A band gets bigger, H zone becomes smaller. B. Sarcomere does not change in size, H zone gets bigger C. H zone double in size, Z lines become closer D. A band does not change in size, Sarcomere becomes smaller nokanalne g 54-In order for a skeletal muscle to relax, calcium ions should return into the lumen of the sarcoplasmic reticulum by the action of present in the wall of one functional component of sarcoplasmic reticulum. A. Calcium ATPase, medial element 240- B. Voltage ATPase, Terminal cisternae C. Ion gated channel, Terminal cisternae bollas o has obles cime D. Calcium switch, medial element They are closely 55-A special component of sarcoplasmic reticulum, flattened membrane disks called connected to T tubule to form a structure known as bor abbo griwing bill A. Cristae, Triad loo ni bok B. Terminal cisternae, Triad C. Ryanodine receptors, T tubule D. Medial element, Terminal cisternae 56-When calcium levels increase in smooth muscle cell cytoplasm, activates complex forms. It binds to and quas hist which phosphorylates myosin light chains thus activating myosin that becomes uncurled and ready to do its job. saludolg nadi naon A. Calcium-calmodulin, MLCK B. Calmodulin, MLCP C. Calcium switch, protein kinase I D. Calcium-calmodulin, Curled myosins gsba galds aslida buy ludacion 57-In order for a smooth muscle to relax, uncurled myosins should go back to their curled form by the action of 20 9B
Transcribed Image Text:C Sliding filament model D. Sliding microtubule model filaments. They must form and dissociate repeatedly during contraction. are links between the Filamentous F-actin of thin filaments and myosin heads of thick А. Cross bridges B. Calcium switches C. Contraction cycles ! D. Power strokes 52-Calcium plays a key role during contraction of skeletal muscles. When calcium concentration is low in the intracellular compartment, myosin-binding sites on actin are blocked by intracellularly, Calcium binds to When calcium levels rise causing A. Tropomyosin, Troponin C, Tropomyosin to shift and allowing myosin to bind. B. Tropomyosin, Troponin T, Troponin C C. Troponin I, Troponin C, Troponin T D. Troponin C, Troponin T, F-actin 53-During the contraction of sarcomere, while A. A band gets bigger, H zone becomes smaller. B. Sarcomere does not change in size, H zone gets bigger C. H zone double in size, Z lines become closer D. A band does not change in size, Sarcomere becomes smaller nokanalne g 54-In order for a skeletal muscle to relax, calcium ions should return into the lumen of the sarcoplasmic reticulum by the action of present in the wall of one functional component of sarcoplasmic reticulum. A. Calcium ATPase, medial element 240- B. Voltage ATPase, Terminal cisternae C. Ion gated channel, Terminal cisternae bollas o has obles cime D. Calcium switch, medial element They are closely 55-A special component of sarcoplasmic reticulum, flattened membrane disks called connected to T tubule to form a structure known as bor abbo griwing bill A. Cristae, Triad loo ni bok B. Terminal cisternae, Triad C. Ryanodine receptors, T tubule D. Medial element, Terminal cisternae 56-When calcium levels increase in smooth muscle cell cytoplasm, activates complex forms. It binds to and quas hist which phosphorylates myosin light chains thus activating myosin that becomes uncurled and ready to do its job. saludolg nadi naon A. Calcium-calmodulin, MLCK B. Calmodulin, MLCP C. Calcium switch, protein kinase I D. Calcium-calmodulin, Curled myosins gsba galds aslida buy ludacion 57-In order for a smooth muscle to relax, uncurled myosins should go back to their curled form by the action of 20 9B
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