Ca2+ is involved in all of the following in human skeletal muscle cells EXCEPT:(A) Binding to troponin(B) Ca2+ release from sarcoplasmic reticulum through the ryanodine receptors(C) Ca2+-transport into the sarcoplasmic reticulum by the Ca2+-ATPase(D) Spike phase of the action potentials of skeletal muscle cells(E) Ca2+ is involved in all of the above Checking your answer...