l T-Mobile LTE 5:44 PM Done 4 of 10 form betwen the_and the treponing tropompasi
ID: 3484168 • Letter: L
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l T-Mobile LTE 5:44 PM Done 4 of 10 form betwen the_and the treponing tropompasin certais thick filaments Uertaia thin m mya heads can bind to actin mmyesin heads can 16. Which best describes the role of Ca a It binds to trepomyoin, meving troponin so th bind to myosis 1tbinds to t binds to tr t binds to t It binds tolaments. so that troponis can bind to trepomyosts od the following statemests ahout the heads of the myosin molecules is true in a normal healthy adult They fors permanent nks with actis flaments ney an attach todiferent sta on the actitament d They allow the myesin flaments to wrap around each sther . None of thes 1&. Flexing of the myasin head requires ATP b. False 9. A mascle fiber is also called a a. Muscdle Masde cell d. Nerve Ce 21) z2 Which of the ollowing is NOT true? Sarcolerma is the membrane of a muscle cell b. Acolemma is the membrane of an ason e Pasma Menbrane can also be called the cell membrane d The Sarceplasmic reticulum contains the cell membrane s two strands of actin molecales wrapped sogether ick ilament lastic flamen e terminal cater item comple 24. ascle centraction, which of the folowing will occur sest Caliam Calcune rcoplasmic reticulu from the sarcoplaim a Caliam is released feom the sarcoplasmic reticulum isto the sancoplasm sarcoplasmi s released froms the sarcoplasmc 4 ]Explanation / Answer
15. Cross bridges are formed by Actin and myosin. Actin is thick and myosin in thin filament. So the answer is certain thick and certain things filament. D
16.Calcium binds with tropomyosin so that the tropomyosin is released from myosin and myosin become free. So myosin heads can bind with actin. The answer is C
17.Myosin heads attach to different sites of actin filament during the muscle contraction. So the answer is B
18. Flexing the myosin head requires energy thus produced by ATP. So the answer is True
19. A muscle fibres is also called muscle cell which is the basic unit of skeletal system. So the answer is B
22. The sarcoplsamic reticulum is equalant to the endoplasmic reticulum of cells so the answer is D
23. The actin is thin filament composed of two molecules of actin bound together. So the answer is B
24. After the contraction is over the calcium returns into the sarcoplasmfrom reticulum. So the answer is B
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