In Skeletal Muscle Contraction and Relaxation, Calcium Ions

Multiple Choice

In skeletal muscle contraction and relaxation, calcium ions

A) bind to myosin myofilaments.
B) are returned to the sarcoplasmic reticulum by active transport.
C) are released from the T tubules by active transport.
D) provide the energy for muscle contraction.
E) have both bind to myosin myofilaments and are returned to the sarcoplasmic reticulum by active transport as normal properties.