the binding of calcium with a subunit of troponin on actin filaments and thereby remove the masking of active sites for myosin. Utilising the energy from ATP hydrolysis, the myosin head now binds to the exposed active sites on actin to form a cross bridge (Figure . ). This pulls the attached actin filaments towards the centre of ‘A’ band.
📖 generic · CBSE Class 11 English medium · BIOLOGY · Page 2question
M USCLE · Part 4
Chapter 17: LOCOMOTION AND MOVEMENT · BIOLOGY
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