muscle contraction 0.0 / 5 ? Biologysliding filament theoryA2/A-levelAQA Created by: pemanCreated on: 08-03-16 17:42 a nerve impulse causes calcium ions to released from endoplasmic reticulum 1 of 8 calcium ions bind to troponin 2 of 8 the binding of calcium ions causes which molecule to move tropomyosin 3 of 8 the ADP molecule on the myosin allows what to be formed cross bridge 4 of 8 once attached to actin, myosin head changes shape and what is released ADP 5 of 8 what molecule attaches to the myosin which causes it to detach from actin ATP 6 of 8 the hydrolysis of ATP provides energy for myosin to return to its original position 7 of 8 myosin, with a ADP molecule attached, then reattaches to actin 8 of 8
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