Energy released from the splitting of ATP is utilized in which of the following processes?

1. Movements of the myosin cross bridges attached to actin myofilaments


2. Formation of phosphocreatine from creatine and phosphate


3. Movement of calcium ions from the cytoplasm into the sarcoplasmic reticulum


4 Establishment of the muscle resting membrane potential





A. 1 and 3


B. 2,3, and 4


C. 2 and 4


D. 1.3, and 4


E. 1,2,3 and 4