Biology, 22.12.2021 14:00, briannabrewer123
During the contraction of a vertebrate skeletal muscle fiber, calcium ions . bind with troponin, causing its shape to change so that the myosin-binding sites on actin are exposed break cross-bridges by acting as a cofactor in the hydrolysis of ATP transmit action potentials from the motor neuron to the muscle fiber spread action potentials through the T tubules
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During the contraction of a vertebrate skeletal muscle fiber, calcium ions . bind with troponin, cau...
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